Screwdriver MKII-Spare Battery. 900mAh, 3.7 Volts. Re-Chargeable Protected Lithium Battery
The Screwdriver battery is a special battery...
It has short circuit protection built into it... to the best of our knowledge this is the only battery of its type in the world..
The Re-Chargeable Batteries for the Screwdriver MKII was made especially to our requirements.. These Were pretty simple...we wanted one that could not explode during usage...
To counter act the potential dangers of Lithium batteries, we have tried to make a "safe" lithium battery.. basically it has short circuit protection built into it.