Product parameters：
Model:Lii-38S+(Flat)
Capacity:3800mah
Internal resistance:<30mΩ
Charging times: 1000 times
Battery voltage: standard voltage 3.7V,
the voltage after charging is 4.2V,
and the voltage when discharging is 2.5V.

Product features:
Comes with explosion-proof valve;
Quality Assurance;
long lasting;
High security;
Widely used: Bluetooth speaker, POS machine, driving recorder,
massager, beauty instrument and so on.

Note:
1. Don't wait until the battery runs out before charging. Lithium batteries are not the same as ordinary batteries. Charging the batteries before using them is not conducive to the health of the lithium battery. Depleting the battery may cause it to fail to recharge
2. Don't put the lithium battery in a place with high temperature. The lithium battery prefers a place with a low temperature.
3. Summary of charging methods: short charging and short charging (infrequently charging, but if you want to rush!)
4.It is the time to charge when the power drops to 10% ~ 20%
5.Use high-quality dedicated lithium battery charger with protection function
5. In low-temperature weather, the use time of the lithium battery will be significantly shortened. This is normal, and it will be restored in about 1 hour in a warm place.