This 603048-013 Li-polymer battery from Shenzhen Yongsheng New Energy Technology Co. Ltd has 3.7V and 950mAh nominal voltage and capacity. The charge and discharge voltages are 4.2 and 2.75V, current 0.45 to 0.9A, and temperatures 0 to 45 C and -20 to 60 C.

The 6x30x48mm unit suits Bluetooth earphones, smart watches and wearables, POS devices, bank USB keys and medical equipment. Price is $1.50 to $1.80. An order of at least 500 units is required for delivery in 20 to 25 days.

ISO 9001-compliant Shenzhen Yongsheng specializes in 10 to 2,000mAh Li-polymer batteries. It has a 10,00sqm factory with target daily output of 150,000 units.