I have had this battery in my Goose #6 for some time. every time i went to charge it with the^Tenergy charger the light always showed green. yesterdays attempt at charging failed and i read zero volts across the leads. this sounds like an internal short. but this is the only battery pack of this type i have. of course this is sized for the box that hides it. the other thing i am seeing is that newer packs have additional leads that go to?
Al P.
Al, your battery says “with PCB” which means it has a BMS board in it: Battery Management System. That prevents the battery being over or undercharged, and a few other useful things. The ‘newer’ packs are probably for racing cars, where they charge each individual cell to make sure they are at peak efficiency. Trains don’t care.
I suspect something in your battery died. One of the cells failed, or maybe the PCB. I don’t know any way to resurrect them.
Don Sweet sells MTO Batteries. They have many shapes and sizes, perhaps one will fit your application. I have had excellent luck with them. They are Li Ion nit Li Poly, so the charger/routine may be a bit different. If that were a Li Ion pack you might be able to disassemble and find a bad cell that could be replaced, but I wouldn’t mess with a Li Poly battery.
One thing that those of us that have multiple battery locomotives may forget to do is to regularly charge them even if they haven’t been used. Lithium batteries hold their charge a long time, but they do self-discharge. If they discharge too far, they fail. Having a monthly or bi-monthly routine of charging everything will extend the lifetime.
