Safe charging battery on the bike?

General Discussion about electric bicycles.
SkipperDK   100 µW

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Re: Safe charging battery on the bike?

Post by SkipperDK » Sep 10 2019 12:32pm

Thanks for all your answers, guys. I've gotten my hands on a fireproof box to put the battery in while recharging for the time being and if possible charge while observing.

Stay safe :flame: :bigthumb:

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wturber   1 MW

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Re: Safe charging battery on the bike?

Post by wturber » Sep 10 2019 11:24pm

SkipperDK wrote:
Sep 10 2019 12:32pm
Thanks for all your answers, guys. I've gotten my hands on a fireproof box to put the battery in while recharging for the time being and if possible charge while observing.

Stay safe :flame: :bigthumb:
Split the charging. Charge some when you get home. Charge the rest in the morning. Sleep in between with no charging.
"Commuter - DC Booster"
Iron Horse 3.0 hardtail - 48V / 1000W / 470rpm generic Chinese DD Hub motor (ebay)
8 x 36v 4.3ah 10s 2P battery packs - 1500W 30A DC Boost Converter delivers 54v and about 1000 watts peak
53T/42T Sakae Road cranks - 30mph+ on flats
viewtopic.php?f=2&t=90369

Tommm   10 kW

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Re: Safe charging battery on the bike?

Post by Tommm » Sep 11 2019 1:47pm

wturber wrote:
Sep 10 2019 11:24pm
SkipperDK wrote:
Sep 10 2019 12:32pm
Thanks for all your answers, guys. I've gotten my hands on a fireproof box to put the battery in while recharging for the time being and if possible charge while observing.

Stay safe :flame: :bigthumb:
Split the charging. Charge some when you get home. Charge the rest in the morning. Sleep in between with no charging.
I do exactly this, but for longevity reasons. Batteries hate sitting at high charge, and if the bad weather kicks in it will be sitting for days at high charge, waiting for the next ride. Try to integrate this pattern: use down to 30%, get home, charge to 60-65%, in the morning top it off to 75-80%.

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wturber   1 MW

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Re: Safe charging battery on the bike?

Post by wturber » Sep 11 2019 7:06pm

Tommm wrote:
Sep 11 2019 1:47pm

I do exactly this, but for longevity reasons. Batteries hate sitting at high charge, and if the bad weather kicks in it will be sitting for days at high charge, waiting for the next ride. Try to integrate this pattern: use down to 30%, get home, charge to 60-65%, in the morning top it off to 75-80%.
When my round-trip commute was 32 miles, that is what I'd do - for longevity and safety. Now that it is only 16 miles, I just charge in the morning.
"Commuter - DC Booster"
Iron Horse 3.0 hardtail - 48V / 1000W / 470rpm generic Chinese DD Hub motor (ebay)
8 x 36v 4.3ah 10s 2P battery packs - 1500W 30A DC Boost Converter delivers 54v and about 1000 watts peak
53T/42T Sakae Road cranks - 30mph+ on flats
viewtopic.php?f=2&t=90369

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fechter   100 GW

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Re: Safe charging battery on the bike?

Post by fechter » Sep 13 2019 7:02pm

That's a great suggestion and I often do something similar. Charge after riding to a safe storage level <80% then top off right before riding. Many times I don't really know when the next ride is going to be but I also don't want to wait several hours once I get a chance.
"One test is worth a thousand opinions"

SkipperDK   100 µW

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Re: Safe charging battery on the bike?

Post by SkipperDK » Sep 14 2019 2:54am

Yeah, great suggestion, i'll try and incorporate that as well. Thanks for all the great advice :thumb:

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