1. please let us know what's your applications, the continues working current and peak working current.
2. please let us know what's the max size of the battery you can accept and your expecting battery capacity.
3. do you need protection circuit board with the battery ?
4. what's the length of the lead wires.
5. Connector name and the orientation of the connector.
6. Your expecting order quantity. if your order quantity is small, we have to choose our storage battery. Because some of the batteries, MOQ is 10K pcs.