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The only caveat to my above answer is if you are planning to store your battery for in excess of six months, in which case charging to 60% is recommended, monitoring its condition, and bringing charge level back to 60% if needed. Day to day, or weekend to weekend, though just go for fully...

Bosch advise that you let it get down to 1 or 2 bars, and then charge fully. This is because their battery management system acts to equalise cell levels of charge once the battery is fully charged, and the advatages of having an evenly balanced battery outweigh the minimal disadvantages of...

Thanks dblhelix - lets say I'm learning to fight back! I went down and had a chat with my fully accredited Bosch Bike dealer. Apparently they only do a full diagnostic on the battery when the initial figures justify it - which mine didn't. He kindly lent me a spare charger. Result! 2 hours 30...

Thanks Thomas, I was afraid of that. Here in the UK the Bosch 4 amp charger is supplied with the bike - never occurred to me to use anything else. Dblhelix, I did look through the forum before I posted, but mine hasn't stopped charging at 4 bars; I still get 5, but only after an interminable...

Thanks for your replies. It's the change in charging behaviour, and the six hours just to fill the final led on top of the two hours or so to fill the first four, that has me worried its time to start saving my pennies for a new battery.

I have an action line Raleigh Motus Hybrid about 4.5 yrs old, 3000 miles, 42 full charge cycles. When I bought it I was encouraged to full charge each time so as to allow the BMS to "work its magic". Since I was using bike almost daily for short eco trips and charging once a week, I don't...