DW01a is equipped with OV charging and self-recovery, and DW01G is suitable for single-cell lithium batteries.
DW01A is a lithium battery protection circuit designed to prevent lithium batteries from being shortened or damaged due to overcharge, overdischarge or overdischarge. excessive current. It has high-precision voltage detection and timing circuits. With 0V charging, self-recovery.
Main Features: 1. Low operating current; 2. 428V overload detection, 408V overload release; 3. 24V overdischarge detection, 30V overdischarge release; 4. 015V overcurrent detection, short circuit current detection 5. Charger detection; 6. Overcurrent protection reset resistor; 7. With self-recovery function; 8.0V charging activation 9. Wide operating voltage rangeis lying ;
DW01G is an electronic component with a minimum operating temperature of -10°, a maximum operating temperature of 80°, a minimum supply voltage of 4.5 V and a maximum supply voltage of 6 V.
This is not harmful, it just exposes the metal and will easily oxidize or discolor in other places.
You can use a multimeter to measure it. There is insulation between the case and the 4 battery contacts, which means the resistance is infinite.
The exterior film therefore has no insulating effect, it simply resembles a brand.
It doesn't matter. If you think it's really ugly, you can stick it yourself with tape.