Perhaps one of the biggest hurdles for manufacturers to overcome with cordless tools is the Bosch 2 607 336 915 drill battery itself. Sure, they must give strict attention to the efficiency of the motor. They must select a motor that can deliver more power output with less draw on the battery.
However, the battery is a very serious part of the equation. That’s why the Bosch Litheon is so popular.
Lithium batteries are known for providing higher cell-density. That means twice the power for twice the duration. You get more of everything.
Remember how big cell phones used to be? I remember the battery pack alone on one of my first Motorola phones. It was bigger than just about ANY cell phone on the market today.
Cell phone batteries are Lithium based.
Bosch GBA 36V tool batteries (lithium-ion) provide much more power than Nickel-Cadmium which means less voltage is necessary for comparable performance.
For example, the Bosch 10.8V drill/driver can do 80% of what the typical user is going to need to do. A 10.8V Litheon battery is very small, while still providing the kick and endurance needed.
A smaller battery means a lighter drill to carry around.
If you take an 18V Ni-Cad battery and a 36V Litheon battery, you’re actually going to see TWICE the power and TWICE the duration. You’ll be able to do more, and do it longer.
Another benefit of the Bosch Litheon is the lack of ‘memory effect’. Ni-Cad batteries (as well as other types) tend to develop a memory that keeps them from charging to full capacity if not fully discharged.
Lithium-ion batteries don’t have this problem.
Granted, these batteries are more expensive to manufacture (and drive the cost of tools up), however, that price is offset by performance and time lost recharging, as well as the life of the battery.
Yet another benefit of Bosch Litheon is that Lithium-ion D-70771 batteries have an extremely low self-discharge rate. Self-discharge is what occurs when you charge the battery and leave it on the shelf. Lithium-ion batteries self-discharge at around 0.1% each month, which means you’ll lose around 1% of charge over a year’s time – not much to worry about.