Description
Compatible with nickel-metal hydride batteries, 18650 and polymer lithium batteries, and lead-acid batteries.
1. When battery voltage is over N*3.3V,it will illuminate 1 block electricity (note: N represents battery quantity)
2. When the battery voltage is over N*3.5V,it will illuminate 2 blocks electricity.
3. When the battery voltage is over N*3.7V,it will illuminate 3 blocks electricity.
4. When the battery voltage is over N*3.9V,it will illuminate 4 blocks electricity.
5. When battery voltage is less than N*3.3V, the 4 blocks display will be off; it represents the battery is less than 3.3V,and you can charge the battery