Rechargeable lithium battery pack 18650 li-ion battery for sweeping machine battery vacuum cleaner flashlight
7.4v 2800mah

Battery Use Tips:
1, long-term use of loudspeakers or other equipment, you need to remove the battery.
2, the battery in the case of live storage, storage time of more than three months, the best time to charge the battery after storage, you can extend the battery life, and can effectively prevent the battery capacity irreversible attenuation.
3, the battery over discharge protection: as long as the plug in the charger, the protection can be solved.
4, the battery overcharge protection: as long as connected to the machine, began to use, protection can be solved.
5, the battery over-current or short circuit protection: the load removed, the protection can be solved.
6, when using a multimeter to measure the battery voltage is 0, please confirm that no 3,4 protection occurred before they can be identified as a battery failure