For Sony Np-fc10 Np-fc11 Rechargeable Digital Camera Battery With High Quality 

1	Battery type	Li-ion battery
2	Voltage	3.7v
3	Capacity	800mAh
4	Working Life	More than 500times
5	Applicable Model	for NP-FC11/FC10
6	Color	Black
7	Warranty	12 months
8	Certification	CE FCC ROHS UL

Replacement battery :
For sony NP-FC11 NP-FC10

Fit camera models:

How to correctly use the NP-FC11 rechargeable digital camera battery ?
1.Please fully charge your batteries before first use.
2.Please fully cycle your batteries at least once before regular use.
3.To cycle your batteries, first fully charge them; then install and use them in your device until your device shuts off and no longer works.
4.Please do not fully charge your batteries before storing them for long periods of time.

Pictures show: