Bosch battery charger on timer

pcpumpkin

New Member
Hi,

I have my Bosch battery charger on a wall timer to charge for a specific time duration overnight to prevent the battery from being charged all the way to 100%. Is anyone able to confirm if having the battery plugged into the charger with the wall power off will 'leak'/discharge power from the battery?

This is probably psychological, but I feel I get less range if I leave the battery on the charger with the power off vs unplugging the battery right after the charger is off.

Thanks!
 

fooferdoggie

Well-Known Member
Hi,

I have my Bosch battery charger on a wall timer to charge for a specific time duration overnight to prevent the battery from being charged all the way to 100%. Is anyone able to confirm if having the battery plugged into the charger with the wall power off will 'leak'/discharge power from the battery?

This is probably psychological, but I feel I get less range if I leave the battery on the charger with the power off vs unplugging the battery right after the charger is off.

Thanks!
no.
 

peterh_nz

Active Member
Region
New Zealand
Hi,

I have my Bosch battery charger on a wall timer to charge for a specific time duration overnight to prevent the battery from being charged all the way to 100%. Is anyone able to confirm if having the battery plugged into the charger with the wall power off will 'leak'/discharge power from the battery?

This is probably psychological, but I feel I get less range if I leave the battery on the charger with the power off vs unplugging the battery right after the charger is off.

Thanks!
If your ebike has a battery level display in percentage charge you could easily test it to give you peace of mind. With charger plugged in but turned off, take a battery level reading then turn the bike/display off. After a few hours (overnight?), turn bike/display on and take second reading.

Cheers

PS I generally don't charge my bike unattended eg overnight.
 
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fooferdoggie

Well-Known Member
you would have to have a nyon or kiox to see battery percentage. but I have my charger on a auto timer just because its hooked to other chargers too so no use having them all on when not in use. but I have not seen any lose ever. Because with the bosch system everything shuts down atthe end of a charge and it wont start up again unless you turn the charger back on or un plug and plug it back in.
 

tomjasz

Well-Known Member
Region
USA
City
Minnesnowta
For safety unattended Ok buf the Bosch battery management system will maintain your battery without having to sort an 80% charge level. Riders ate getting 12,000-14,000 miles out of a battery. If doesn’t get better!!!
 

fooferdoggie

Well-Known Member
For safety unattended Ok buf the Bosch battery management system will maintain your battery without having to sort an 80% charge level. Riders ate getting 12,000-14,000 miles out of a battery. If doesn’t get better!!!
14k is nothing I hit that mark and the battery is still fine. I ahd the auto timer from the bike before bosch so I sue it to turn on the charger after a hour so the battery has time to warm or cool down.