The included protection circuitry keeps the battery voltage from going too high (over-charging) or low (over-use) which means that the battery will cut-out when completely dead at 2.5V. However, even with this protection it is very important that you only use a LiIon/LiPoly constant-voltage/constant-current charger to recharge them and at a rate of 3A or less.
Like most lithium-ion packs, the batteries we sell do not have thermistors built in. This is why we suggest charging at 1/2C or even less — 3A max in this case. Of course, you can charge at a lower rate — it’ll just take a little longer to fill up.
Additional safety notes: Do not use a NiMH/NiCad/lead-acid charger! Use a proper LiIon/LiPoly charger for 3.7/4.2V cells. Do not charge unattended. Also, do not abuse these batteries, do not short, bend, crush or puncture. As with all Lithium ion batteries and with any power source — they should be used by experts who are comfortable working with power supplies.
- 3 x 2200mAh Lithium Ion 18650-sized cells in parallel
- Dimensions: 69mm x 54mm x 18mm / 2.7″ x 2.1″ x 0.71″
- Weight: 155 g/ 5 oz
- Max charging rate: 3A
- Max continuous discharge rate: 6A