All Li-Ion Battery packs must connect to a protection circuit module to protect Li-Ion Battery from overcharge, over discharge and to prevent accidental battery explosion due to its extra high energy density. The protection circuit is specially designed for 3.7V Li-Ion Battery. Please refer to the specification on how to wire the pcb to battery.
Please be advised that this circuit will provide the following protections:
Prevents 3.7V Li-Ion Battery pack from overcharging 4.325 +/- 0.025V
Prevents 3.7V Li-Ion Battery pack from over discharging 2.50 +/- 0.105V
Maintains 3.7V Li-Ion Battery pack's discharge current lower than 8A.
Protect battery from short circuit and wrong polarity
Dimension:36mm(1.4") x 7.5mm(0.3") x 2.0mm(0.07")
Max Weight: 0.1 Oz (3.0 grams)