Routejade PD3048-HP2W28-30MA2 Button / Coin 3.7V 300mAh Lithium Ion (LiIon) Battery EACH.
Charge with lithium ion type charger at constant current (max’ 1C) to 4.2V then contant voltage – terminate 0.05.
Additional Data Sheet information PD3048-HP2W28-30MA2_2 Â and PD3048-HP2W28-30MA2_3