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Battery Issue Maybe?

The last time i rode my fat bike i failed to turn the battery off. 5 months have gone by and when attempting to charge it, the light stays green and doesn't charge. This is after all of the suggested plug in wall last etc etc. Normally i'd automatically say it's a bad battery, but i've only ridden the bike 3 times since i've had it. So basically the battery is brand new. 

Is the fact that it's drained completely relevant to my problem? Any help is most appreciated 

 

Cheers,

Shaun

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First, are you sure you turned on the switch at the Throttle?  Has happened a lot....probably not your problem though. Is the battery securely in the cradle? Are the contact points clean? 

Next, you can check to see if the battery is delivering any output by using the pointy ends of the Multimeter probes to pierce the power  (through the insulation) going to the controller. The Built-In Battery BMS (battery managment system) should shut off the battery at the low voltage cut off point to keep the battery from draining below the non recoverable point but after five months.....it may be dead. There are probably recoverable cells still in the pack that could be reused but the methodology, testing, sorting and reassembling a new pack and BMS is costly and complicated unless you are building many pack. DIY GUYS, buy outdated laptop batteties on eBay to create cheap usable pack. 

Lemmeno,what you find.

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My battery - after inspection seems to have a defect? Or maybe there was a short? 

It wont power up? It's dead. 

 

Have had had the bike ~2 months  

Fat tires, 350W, LCD, panasonic battery  

 

Anyone have ave any ideas? 

 

Much appreciated. 

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Edited by Zeuswolf

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