18650 3400mah original battery 3.7v li-ion rechargebale ncr18650b 18650 3400mah li-ion 18650 rechargeable battery for flashlight torch batte

widely used: bluetooth speaker, pos machine, driving recorder,
massager, beauty instrument and so on. comes with explosion-proof valve;
quality assurance;
long lasting;
high security; capacity:3300-3400mah
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..syi