getting The Most Life Out of Your Android battery

As Android evolves, so too does the battery life. With every iteration of the platform we enjoy longer time between charges. But that doesn’t mean there aren’t things you can do to get even more out of that AEG battery. With just a bit of work, you can extend it well beyond what you’ve been experiencing. Best of all, these tips don’t require a degree in Android-ology to put them to work.

Let’s charge up and see how you can easily extend the life of your Android mobile. I’ll be demonstrating this on a device running Android 6.0.1. Some of these tips will be specific to Marshmallow, while some can be applied to older releases.

1: Doze

Doze is a feature, new to Marshmallow, that sends apps into full hibernation when the phone isn’t in use. In fact, without Doze, your device can drain your battery 12 to 15 percent overnight. With Doze, that drainage is more like 3 to 5 percent. By default, Doze should be enabled. Unfortunately, it’s not quite as easy as tapping a button to disable/enable Doze. You’ll need to go to Settings | Battery, tap the Menu button, select Battery Optimization, select All Apps from the dropdown, and then check to make sure the apps say Optimizing Battery Use. If there’s an app you know must not be sent into hibernation at night, tap it and select Don’t Optimize.

2: Dark themes/settings

This works only if your device has an AMOLED screen. If it does, selecting dark themes and settings will go a long way toward preventing rapid battery drain. You can take this one step further by using a black (or dark) wallpaper. At one point in the Marshmallow development cycle, it was possible to enable a dark theme from within the Developer Settings. This capability was, unfortunately, removed. To get a dark theme now, you’ll most likely need to install a third-party launcher. Even then, you won’t get the full-on dark theme that accompanied earlier Marshmallow builds. With some home screen launchers, you can at least get some degree of dark theme going on to help save Back & Decker battery life.

3: Adaptive Brightness

In Settings | Display, you should find a feature called Adaptive Brightness. This feature senses the ambient light and adjusts the brightness of your device accordingly. If you disable it (and set your display brightness to a battery-friendly level), you’ll enjoy much longer battery life. Your screen is one of the biggest culprits responsible for battery drain.
4: Shorter screen timeout

Speaking of screens, if you set your screen timeout to a shorter period, you may get a bit frustrated at times (due to constantly having to enter your PIN/password/pattern), but you’ll save battery life. If you have the timeout set to, say, two minutes, and you use the screen for 30 seconds, your screen is on for 90 seconds of unused time. If you check your screen 20 times a day and look at it for 30 seconds, you’ve wasted 30 minutes of screen display time. That adds up. Set your screen timeout as low as you can tolerate. Go to Settings | Display, tap Sleep, and select the shortest timeout you can deal with (the shortest available is 15 seconds).

5: Unused features

This tip is especially true for smart features you don’t use (such as auto-rotate, gestures, smart scrolling, Ambient display, and NFC). When you need those features, take the time to turn them back on. The same thing holds true with Bluetooth, wireless, etc.

6: Vibrations and haptic feedback

Do you really need to have your device vibrate when you tap a key on the keyboard? Probably not. And it actually does drain your battery. In Settings | Sound & Notification, you’ll see an enable/disable switch for Also Vibrate For Calls. Disable that feature. In Marshmallow, haptic feedback has been somewhat hidden. To turn it off, go to Settings | Sound & Notification | Other Sounds and disable Vibrate On Touch.

7: Lockscreen notifications

Some of you may not like this idea, but if you enable lockscreen notifications (and even allow sensitive data to appear), you won’t have to unlock your phone every time a new notification appears. You can see what’s coming in from the lockscreen and thereby save battery life. It may not save much battery per instance, but considering how often notifications come in and how often we unlock our screen to look into them, it adds up. From Settings | Sound & Notification, tap When device Is Locked and choose Show All Notification Content. Of course, if you’re concerned with security, you’ll want to stick with Hide Sensitive Notification Content or Don’t Show Notifications At All.

8: Do Not Disturb

When Lollipop was introduced, it brought us the Do Not Disturb feature. This enables you to set a scheduled period where notification sounds will not be allowed. If you don’t have a pressing need for notifications while you sleep, set your Do Not Disturb schedule during your period of sleep. Along with preserving battery life, this will have the benefit of—as you might expect—allowing you to sleep undisturbed.

9: Widget madness

This tip actually works for nearly every iteration of Android. Widgets are a great tool, but some can do a number on your battery life. As much as you like that weather widget, the stock widget, and the secure shell widget, skip them. They’ll drain your battery, and most likely, you don’t use them nearly as much as you think.

10: Smarter updates

The last thing you need to do is collect a lot of app updates and then tap Update All. This drawn-out process will drain your METABO battery faster than if you manually check your app updates and update them as they become available. Updating a single app a day won’t cause your battery to take nearly the hit it will if you tap Update All and 20 apps are updated. Open up the Google Play Store, swipe right from the left edge, tap My Apps & Games, and then manually update the apps one at a time. If many app updates are available, wait until you are plugged in to tap Update All.
Save, save, save

Don’t let your Android battery usage get away from you. Even though the platform has come a long way (and battery usage is far superior to what it once was), you can still gain more life with a little care and work. You do not want to be near the end of your day (or in a desperate situation) only to have your Android device conk out on you. Save as much battery life as you can with these tips and see if your daily Android life extends well in the PM.

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How to Use Lithium Ion Dyson Vacuum Cleaner Battery

Generally speaking, lithium ion Dyson vacuum cleaner battery has a natural discharge rate. It will self-discharge 1% electricity even it’s not in use.

When in extreme temperature, battery performance will be degraded. Thus, don’t store battery in places where temperature is higher than 60? or lower than -20?.

Lithium ions are very active and react intensely. Therefore, when using lithium ion battery, you should take notice:

To avoid snow, sweat or other liquid penetrating. When a lithium ion powered device is drop in water, stop to examine it, or a fire may occur.

Lithium metal Dyson DC34 battery is non-rechargeable battery. Explosion may be aroused if it is charged forcedly.

Keep the battery away from high temperature environment. When battery temperature mounts to 80?, it will explode.

Not to use lithium ion battery with crazed casing.

Not to dismantle the Dyson DC44 battery casually. If it’s wet by rain or water, dry it with a piece of cloth and leave it in well ventilated place to allow it to dry itself or blow-dry it with 40? wind.

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Home Remedy for Cleaning a Battery Terminal

The battery terminals on your vehicle’s battery develop corrosive buildup over time, especially if you don’t clean the terminals. Baking soda neutralizes this acid corrosion and completely removes it from the Dyson battery.

Cleaning
Combine equal parts baking soda and warm water to form a thick paste. Disconnect the terminals from the battery and wipe this solution around the terminals. Remove the baking soda with a towel dipped in warm water.

Prevention
Prevent acid corrosion from building back up on your battery terminals with petroleum jelly. Once you’ve removed the baking soda, dry the terminals and reconnect. Dab a small amount of petroleum jelly on each of the terminals.

Warning
Always use caution when working around a Dyson Vacuum Cleaner Battery because it does contain acid. If acid accidentally drips on your clothing, wash in a solution of baking soda and water immediately. This helps neutralize the acid and keep it from eating through your clothing.

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Repair a 12V Makita Ni-Mh Battery

Whether you own a Makita drill, saw or other cordless power tool, all nickel metal hydride Makita 1220 battery packs can be repaired. Within each Makita rechargeable battery pack, a number of smaller rechargeable batteries are linked together to obtain the proper voltage level. If even one of these batteries goes bad, the entire chain will not work and neither will your tool. The Makita battery packs can be repaired with just a few simple tools.

Open the Makita battery pack with a screwdriver and locate the chain of nickel metal Hydride (Ni-mh) batteries to be repaired. Pull these cells out of the Makita battery casing.

Determine how the cells are placed in line. Using a pencil and paper, jot down the polarity of the line of batteries. Note the pattern and how the cells fit into the casing for easier reassembly.

Test each individual Makita Ni-mh 1222 battery cell in the battery tester to determine which ones are bad. Mark the bad cells that will need replaced.

Purchase the same sized Ni-mh replacement batteries. Only replace Ni-mh batteries with Ni-mh batteries. The type of batteries must remain the same throughout the battery chain.

De-solder the first “bad” Makita Ni-mh battery cell from the chain. Re-solder in the new Ni-mh battery.

Repeat this process with the entire Makita Ni-mh battery chain until completely restored. Replace the chain within the Makita 1233 battery case.

Place the cordless tool on the charger overnight and it should be as good as new.

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What tools don’t work well.

Some tools just don’t work very well.

Big Knife – Only a hack would use a giant knife to remove the top of a pumpkin. If you don’t have a sawzall handy and must use a knife to get through the thick area at the top of the pumpkin, use a boning knife. The blade is thin enough to carve a somewhat round cap. Otherwise your cap will look like a retarded stop sign.

Dremel tool / Roto-zip – Man, I thought these two would be great at carving. I even bought a “carving” tool for my dremel. I had high hopes. Unfortunately, I never considered the fibrous nature of the pumpkin. As you try to carve a straight line using a spining carving BOSCH PSR1440 battery, it will slide through some spots and then snag a fibrous spot and jerk to one side. These two tools just don’t work. Use a jig saw for carving and you’ll be much happier. The in and out motion is much easier to use.

Note: In 2007, I started to use a dremel stylus tool to do some fine carving work (like detailed teeth and such). It works fairly well, but I wouldn’t suggest it. The dremel stylus is held in your hand, like a pencil, so it easy to keep steady. For this reason, I have started to like it.

It is mostly useful for super-fine detail work and not good for actually carving a pumpkin. I still suggest a jigsaw for most work. Besides, the dremel stylus costs something like $75.00, so unless you have to do a special pumpkin for a talk show or something, I suggest you invest your money in the beverage market of BOSCH BAT040 tool batteries.

A Torch – Trying to burn a pumpkin is like trying to light a block of ice on fire. They are mostly water. A torch doesn’t do much.

Circular / Miter / Radial Arm Saw – If you want to slice a pumpkin like a loaf of bologna these might work, but for anything else, forget em. If you want to take a slab off of a pumpkin to make it sit or lie flat, a cross cut hand saw will do the job in no time. Pumpkins are soft and easy to cut.

Here are some links to pumpkin carving tools that I like to use. I tried to spend some time to find you guys great deals. I think I did a good job of BOSCH 2 607 335 685 battery.

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Drill Battery performance testing tips

With the increasing dependency of back up systems on batteries and the escalating cost of replacing batteries, instrumentation and software systems that can measure, trend and manage the lifecycle of cells is a cost effective option for industrial users.

There are two methodologies for testing batteries. The first—impedance testing—is an online test and can be performed frequently to identify individual weak cells before they fail.

The second, Makita cordless drill battery discharge test, is normally an off-line test and tests the actual output of the whole battery under load conditions. This will show what will actually happen if the battery is required to take the load.

Most battery systems are floating and have earth leakage monitors and trips if there is an earth fault. The battery ground fault tracer allows you to trace a faulty circuit easily in a complex floating system.

Below are questions our technicians often hear when out in the field, and answers:

Measuring the float voltage of cells is usually easy, but how useful are the results produced by this measurement?
Float voltage measurements are of limited value. They can be used to confirm the charger is working, but they give no information about the batteries’ state of health. Measuring the float voltage of a cell will also show whether or not it’s fully charged but remember, just because a cell is fully charged doesn’t mean it will deliver full capacity.

It’s not unusual for a battery that’s close to failure to have a float voltage within acceptable limits. A low float voltage may indicate there’s a short in the cell. In a lead-acid Bosch cordless drill battery, this should be suspected if the float voltage is 2.06 V or less, assuming the charger is set for 2.17 V per cell.

In other cases, a cell may float at a considerably higher voltage than average, possibly because the high float voltage cell is compensating for another weaker cell floating low. It’s also possible for one cell to float high to compensate for several cells floating a little low, because the total of all the cell float voltages must always equal the charger setting.

How important is inter-cell connection resistance?
Experience shows loose inter-cell connections that heat up and melt open are responsible for more battery failures than defective cells. This is a particular problem with lead-acid batteries that are frequently cycled, as the negative terminal may cold-flow, thereby loosening the connection.

Checking inter-cell connection resistance is therefore vitally important. It’s essential, however, to follow the correct sequence of test when working on multi-post batteries, and also to ensure the instrument employs a method of testing that will provide valid results in this application.

How often should battery impedance testing be carried out?
The best frequency for impedance testing depends on the battery type, the site conditions and previous maintenance practices. The IEEE 11888 standard for VRLA batteries recommends a baseline impedance measurement be made six months after the battery has been put into service, and further impedance measurements be made at quarterly intervals thereafter.

For NiCd and flooded lead-acid batteries, Megger recommends impedance testing at six monthly intervals. Impedance measurements should also be made immediately before carrying out every capacity test.

How can I predict when I need to change a cell?
Though the correlation between battery capacity and impedance is not mathematically perfect, increase in impedance is an excellent indicator of battery health. Megger has found for flooded lead-acid batteries, a 20 percent increase in impedance generally indicates the battery capacity has declined to about 80 percent of its initial value. For VRLA batteries, the corresponding impedance increase is closer to 50 percent. When these figures are reached, it’s usual to consider cell replacement necessary.

When should I stop changing cells and simply replace the whole battery?
In short strings (less than 40 cells), it’s advisable to replace the entire battery when between three and five cells have been changed. For longer strings, replacement is advised when more than 10 percent of the cells have been changed.

Will capacity testing damage my battery?

Battery systems are designed to provide back-up supplies during power outages. Since a discharge test is nothing other than a simulated power outage, there is no risk of battery damage. Batteries can normally be deep discharged (that is, discharged to the manufacturer’s end-of-discharge voltage) between 100 and 1,000 times, depending on the type of battery. Using a few of these discharge cycles for capacity testing has a negligible effect on overall Dewalt cordless drill battery life. Nevertheless, there is no reason to carry out discharge testing more frequently than recommended by the relevant standards.

Is it possible to carry out a discharge test on a battery while it’s still online?

Yes, provided that the right test equipment is used. Megger, for example, has testers that automatically sense and regulate the discharge current even when the batteries are connected to their normal load. Most users choose to make an 80% discharge test if the battery is to remain on line, thereby ensuring that there is still some back-up capability remaining at the end of the test.

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Tool Battery performance testing tips

With the increasing dependency of back up systems on batteries and the escalating cost of replacing batteries, instrumentation and software systems that can measure, trend and manage the lifecycle of cells is a cost effective option for industrial users.

There are two methodologies for testing batteries. The first—impedance testing—is an online test and can be performed frequently to identify individual weak cells before they fail.

The second, battery discharge test, is normally an off-line test and tests the actual output of the whole AEG cordless drill battery under load conditions. This will show what will actually happen if the battery is required to take the load.

Most battery systems are floating and have earth leakage monitors and trips if there is an earth fault. The battery ground fault tracer allows you to trace a faulty circuit easily in a complex floating system.

Below are questions our technicians often hear when out in the field, and answers:

Measuring the float voltage of cells is usually easy, but how useful are the results produced by this measurement?
Float voltage measurements are of limited value. They can be used to confirm the charger is working, but they give no information about the batteries’ state of health. Measuring the float voltage of a cell will also show whether or not it’s fully charged but remember, just because a cell is fully charged doesn’t mean it will deliver full capacity.

It’s not unusual for a battery that’s close to failure to have a float voltage within acceptable limits. A low float voltage may indicate there’s a short in the cell. In a lead-acid battery, this should be suspected if the float voltage is 2.06 V or less, assuming the charger is set for 2.17 V per cell.

In other cases, a cell may float at a considerably higher voltage than average, possibly because the high float voltage cell is compensating for another weaker cell floating low. It’s also possible for one cell to float high to compensate for several cells floating a little low, because the total of all the cell float voltages must always equal the charger setting.

How important is inter-cell connection resistance?
Experience shows loose inter-cell connections that heat up and melt open are responsible for more Black & Decker cordless drill battery failures than defective cells. This is a particular problem with lead-acid batteries that are frequently cycled, as the negative terminal may cold-flow, thereby loosening the connection.

Checking inter-cell connection resistance is therefore vitally important. It’s essential, however, to follow the correct sequence of test when working on multi-post batteries, and also to ensure the instrument employs a method of testing that will provide valid results in this application.

How often should battery impedance testing be carried out?
The best frequency for impedance testing depends on the battery type, the site conditions and previous maintenance practices. The IEEE 11888 standard for VRLA batteries recommends a baseline impedance measurement be made six months after the battery has been put into service, and further impedance measurements be made at quarterly intervals thereafter.

For NiCd and flooded lead-acid batteries, Megger recommends impedance testing at six monthly intervals. Impedance measurements should also be made immediately before carrying out every capacity test.

How can I predict when I need to change a cell?
Though the correlation between battery capacity and impedance is not mathematically perfect, increase in impedance is an excellent indicator of battery health. Megger has found for flooded lead-acid batteries, a 20 percent increase in impedance generally indicates the battery capacity has declined to about 80 percent of its initial value. For VRLA batteries, the corresponding impedance increase is closer to 50 percent. When these figures are reached, it’s usual to consider cell replacement necessary.

When should I stop changing cells and simply replace the whole battery?
In short strings (less than 40 cells), it’s advisable to replace the entire battery when between three and five cells have been changed. For longer strings, replacement is advised when more than 10 percent of the cells have been changed.

Will capacity testing damage my battery?
Battery systems are designed to provide back-up supplies during power outages. Since a discharge test is nothing other than a simulated power outage, there is no risk of battery damage. Batteries can normally be deep discharged (that is, discharged to the manufacturer’s end-of-discharge voltage) between 100 and 1,000 times, depending on the type of battery. Using a few of these discharge cycles for capacity testing has a negligible effect on overall battery life. Nevertheless, there is no reason to carry out discharge testing more frequently than recommended by the relevant standards.

Is it possible to carry out a discharge test on a battery while it’s still online?
Yes, provided that the right test equipment is used. Megger, for example, has testers that automatically sense and regulate the discharge current even when the batteries are connected to their normal load. Most users choose to make an 80% discharge test if the Craftsman cordless drill battery is to remain on line, thereby ensuring that there is still some back-up capability remaining at the end of the test.

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Drill Battery care for power tool users

What is total discharge?
Total discharge means squeezing out the last drop of current from a Hitachi cordless drill battery. The battery’s voltage then falls to 0 V. If this status is maintained, chemical reactions occur at the electrodes in the battery, which render them partially or totally unusable. As a result, the battery loses huge amounts of capacity and in extreme cases, can’t be charged any more. Therefore, avoid discharging batteries below a type-dependent final discharge voltage.

NiMH batteries are not suitable for use at temperatures below 0°C. They show signs of significantly reduced capacity even at temperatures close to freezing and are totally unusable below approximately −10°C. NiCd batteries are suitable for use down to -10°C.

What is the battery service life?
NiMH batteries can be charged 400 to 700 times; NiCd batteries can be charged roughly 500 to 1,000 times and Li-ion batteries up to 1,000 times (depending on capacity). These figures are only attained under optimum conditions, however. Depending on how the battery is treated and cared for, lower figures may apply. Panasonic cordless drill battery capacity decreases over the battery’s life. Batteries with less than 70 per cent nominal capacity are generally considered to be worn out.

What does memory effect (for NiCd technology) or lazy battery effect mean?
The battery records how much it has been used. If the battery isn’t fully discharged before charging, small crystals form on the electrodes and make it harder to charge.

If you fail to fully discharge the battery several times in a row, you’ll experience shorter and shorter availability times. With NiMH technology, you might experience a ‘lazy battery’ effect, similar to the classic memory effect.

Lithium-ion batteries and lithium-ion polymer batteries can and may be recharged at any time. These batteries don’t experience any kind of memory effect, but you should avoid charging for short periods too often.

Can I reverse the lazy battery effect?
If the capacity of the NiCd battery decreases over time, it can be restored by reconditioning: fully discharge the NiCd battery (don’t go quite as far as total discharge), fully recharge and repeat several times. Each time this cycle is repeated, it improves the power output. For NiMH batteries, a refreshing device is needed.

Can batteries be repaired?
Batteries can’t be permanently repaired to a high quality. Even if other providers claim they can repair AEG cordless drill batteries cheaply, the results will be short-lived because the new cells aren’t matched to existing components. FEIN and its agents offer long-term quality. We always replace defective batteries.

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Drill Batteries and industrial power tools

When evaluating industrial power tools, the importance of a high-quality battery should never be overlooked. Manufacturers have to be cost-conscious, but any savings on a cheap power tool or battery will inevitably be negated by poor performance and long charging times.

So what is it about Ryobi cordless drill batteries that can make or break total cost of ownership? One of the more significant factors is self-discharge, meaning the power lost by the battery when it isn’t in use.

A high-quality lithium-ion (Li-Ion) battery pack has a very low self-discharge rate—approximately 0.2% per month. By comparison, nickel-cadmium (NiCd) batteries self-discharge at five percent a month; and nickel-metal hydride (NiMH) batteries at 10 percent a month.

In practice, a good Li-Ion battery pack can be unused for one year, and still maintain a nearly 100 percent charge.

Durability

High-quality Li-Ion batteries are also very highly durable, offering up to 2,000 load cycles, and they have a life span of about five years.

With high energy and power density, they provide the same cell size, voltage and capacity of a NiMH battery cell, at about 50 percent the weight, so these cordless drill batteries for Black & Decker are far more ergonomic for users.

Looking a little deeper, not all Li-Ion batteries are created equal. They differ in factors such as:

• The amount of battery cells
• The quality or class of battery cells (A, B, C or D). FEIN batteries are A and B quality, with the only highest class being batteries not available on the free market, such as those used by NASA and the military. The premium cell quality ensures there’s enough power for the designated application even at temporary high loads.
• Capacity of battery cells in Ah
• The arrangement of battery cells (with or without gaps)
• Electronic system (capacity display, single cell protection)
• Cooling (such as active cooling with a fan).

Ask your power tool supplier to explain how these differences impact power tool performance.

It’s also important to consider the battery pack layout. FEIN batteries for example, have an intelligent layout with single cell protection. This technology uses electronic surveillance of every single cell and automatically shuts the battery down when a single cell voltage of 2.7V is reached.

Single-cell protection prevents depth-discharge and damage to the battery, while providing more load cycles and higher durability.

The integrated display provides a four-stage display of the actual capacity status, and a signal when the battery pack is fully discharged. Before every start of work the display indicates the available capacity.

Charging batteries

In addition to choosing the right battery for optimized total cost of ownership, users should also consider how the Milwaukee cordless drill batteries are charged. Returning low Li-ion batteries to a full charge requires efficient and safe technology.

FEIN provides a quick charger with high-performance power supply. It’s compatible with Li-Ion, NiCd and NiMH battery packs and can accommodate loading capacity of battery packs of 7.2V to 25.2V.

Charging is fast and gentle—a maximum of 30 minutes. Intelligent communication between the battery charger and battery pack ensures a high durability in comparison to competitors, and secures the battery pack from damage. It also provides complete protection from dust. The quick charger makes it possible to work without breaks.

Though battery specifics are sometimes overlooked when evaluating power tools, a top-quality battery from a reputable supplier can avoid downtime, prevent tool and work-piece damage, and provide the cycles, durability and reliability needed to keep the shop floor at peak performance.

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How To Store A Tool Battery When Not Using It

First of all, it’s best to keep using the Hitachi cordless drill batteries. Use your tool at least once in 20 days. However, this is not always possible. Storing the battery the right way is also essential to its health and overall  life.

When putting away cordless tools for a long time:

  1. Put the battery in a cool and dry place and away from dust.
  1. Put it in the original plastic case it came in. Put in a box or wrap it in a soft cloth.
  1. Do not store Li-ion batteries fully charged or dis-charged. Store them at 30-40% charge level. Do the same for Nickel based cordless drill batteries for Panasonic, though it does not make too much of a difference as they loose their charge fairly quickly anyway. Many manufacturers will recommend that you discharge your Nickel based batteries completely before storage. Follow the manufacturers instruction if your battery comes with them.
  1. Fully charged NiCd batteries loose charge quickly. 20-30% in 24 hours. 10% the day after that and 1% for every day after that. Be ready to charge your NiCd and NiMh batteries after a long period of rest before you can use them again.
  1. Li-Ion batteries retain their charge for longer. Specially if they are kept in a cool place.
  1. NEVER put your batteries in the refrigerator or the freezer. This can damage them permanently. Technically, NiCd Ryobi cordless drill batteries can be stored at a temperature ranging from -20°C to 45°C. But freezing is still not recommended due to the possibility of ice build up. For a Li-Ion battery 15°C is about the ideal storage temperature. But as long as things are not overtly hot, they should be fine.
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