Ok so I will try to be as descriptive as possible. I have an ancheer electric bike (yes I know they are crap) it used to be able to give full power now can only give power on lowest setting. Anyway now whenever I put charger in to charge it, it doesn't charge and says the battery is fully charged. So I ride it and few mile later typically it dies. The on board computer says it's only half full as well. Ivd replaced the charger still same thing, I've got a multi meter and tested the battery its reading 8ah and 36v which is what the battery says. Any ideas on next steps anyone faced anything like this? I'd really like to get it working again