The KeepPower 3500mAh 18650 Li-ion battery (model P1835J) is a high-quality, protected battery with "+" and "-" on the same pole. It offers 3.7V nominal voltage, 3500mAh capacity and protection against overcharging, deep discharge, overcurrent and short circuit. With over 500 charging cycles, it is durable and reliable.
| battery details | ER18650, Li-Ion |
| power supply | battery, included, replaceable |
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