Approximate size: 2.68*1.46*0.75 Inch with jst PH2.0 /2p plug and 3.15in 2pin wire.
Rechargeable Li-Ion batteries 3.7V, 2600 mAh 9.62Wh, Weight: 1.76oz, 18650 with connector.
If the customer is using this 18650 battery pack to replace the old battery, please compare the polarity of the wires of the New / Old batteries before replacing them. Usually the Red wire leads is the positive pole, the Black wire is the negative pole. **** If it does not match your old battery, please swap the plug's wire positions yourself. Thank you!
Safety Features: This 3.7V rechargeable lithium ion battery is made with high-quality materials and features built-in overcharge/over-discharge protection and short-circuit protection. This ensures the battery operates at its best and eliminates potential hazards.