Fytoo Accessories 4PCS 3.7V 1800mah Li-ion Battery with 1PCS 4 in 1 Charger for E88 E88PRO E88MAX E525 E99 E99PRO P1 P5PRO K3 S1 P8 RC Quadcopter UAV Spare Li-ion Battery

Battery parameters.
Battery voltage: 3.7V
Battery configuration: 1S
Battery capacity: 1800mAh
Discharge rate: 25C
Battery weight: 22g/1PCS
Battery Size: L2.84(in) X W1.14(in) X Thickness 0.32(in)
Battery chemistry: Lithium polymer

Charger parameters.
1: Charger USB interface DC5V 2-3A
2: Charger output DC 4.2V 500mah
3: LED red light is on: charging
4: LED red light off: fully charged
5: 4 in 1 intelligent charger:
6: Automatic stop charging when fully charged

Attention:
Charge Li-Po battery with Li-Po battery charger only
Charge the Li-Po battery on a heat resistant surface
Inspect Li-Po battery before charging and operating it
Do not let Li-Po cells overheat at any time
Do not over-discharge the Li-Po battery

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Any questions please feel free to contact me, we will be very happy to service you.