leew said:It looks like the "computer" is the BMS which stands for "battery management system". Basically the BMS makes sure the cells within the battery remain balanced, there is a wire from each cell (or group of parallel cells) to the BMS so it can monitor the voltage of each cell in the battery and "bleed" off current to balance the cells. It also prevents the battery from being over-charged or over discharged. A few people refer to a BMS as a "battery murdering system" because the BMS itself draws a small current from the battery so if you leave the battery laying around for long enough this small current will eventually flatten and thus murder the battery!
leew said:No, the BMS should be permanently attached to the battery, the only time you should disconnect it is if you are going to put the battery into long term storage.
cgokey said:leew said:No, the BMS should be permanently attached to the battery, the only time you should disconnect it is if you are going to put the battery into long term storage.
So that is monterous lifepo4 pack? What about these that they sell on ebay:
http://www.ebay.com/itm/48V20AH-Li-ion-LiFePO4-Battery-Pack-and-BMS-Charger-For-Ebike-Free-Shipping/191893423984?_trksid=p2047675.c100011.m1850&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D36861%26meid%3De703e319445e4022b0a39b825baf4844%26pid%3D100011%26rk%3D1%26rkt%3D10%26sd%3D191892564119
Do these come with a computer too? Or are they now built into the battery pack somehow? I don't see that third piece (battery, bms computer, and charger).