Im trying to Identify the connections on a cordless tool battery. Not for any real reason, just curious why so many contacts are needed.
Its a 18v Hitachi battery from a cordless drill. Batt # BCL 1815
There are 7 contacts. One is not used. The 6 which are used are labeled as such.
- +
- -
- T
- LS
- LE
- L+
The + and - are obvious.
But what are the others for?