On Saturday, June 14, 2014 1:15:51 PM UTC-7, WaltWX wrote:
Just bought a Tenergy LiFePO4 12.8V 10ah + Charger from all-battery.com



It has the Battery Management System (BMS) with short circuit, over charge and under discharge protection.



QUESTION: Any recommendations from other glider pilots on whether I should ALSO add a fuse on the battery before installing the connector for my ship?



BTW.. all-battery.com had a good deal. Total price $164.56 included free 1.5amp charger, tax, shipping and a $19.20 discount. Battery was $159.99.



Walt Rogers WX

Personally I would ALWAYS install a fuse directly on the battery pack as close as practical to the terminal post. The purpose of a power distribution fuse is to protect the wiring on the load side. While your battery pack may have some form of short circuit protection for itself, you have no way of inspecting it or knowing if protection for it, might mean less than 30 amps draw which would happily torch your wiring - with no harm to the battery. The fuse you install should be the appropriate size for the smallest wire it serves.