Looking for reputable source for 'silver fish' battery

[Steveu]

A friend has secondhand Smarta bike (about 10 years old) which needs a replacement battery, the type that slides in behind the seat tube. I think this type of battery is often referred to as a 'Silver Fish' battery and is used on a wide variety of older ebikes. There are many such batteries available on ebay and Amazon but we want to ensure that the replacement is safe to use, ie has good quality battery cells, a battery management system to prevent over-charging etc. Can anyone recommend a reputable source for a replacement? NB We know the ebike works as we've tried a battery from another bike (aJorvik trike) and all is fine.

 

[saneagle]

A friend has secondhand Smarta bike (about 10 years old) which needs a replacement battery, the type that slides in behind the seat tube. I think this type of battery is often referred to as a 'Silver Fish' battery and is used on a wide variety of older ebikes. There are many such batteries available on ebay and Amazon but we want to ensure that the replacement is safe to use, ie has good quality battery cells, a battery management system to prevent over-charging etc. Can anyone recommend a reputable source for a replacement? NB We know the ebike works as we've tried a battery from another bike (aJorvik trike) and all is fine.

They're all much of a muchness. I wouldn't worry too much about the quality. Look at the supplier feedback and reviews.

You can get a bigger or smaller capacity one if you want.

Sometimes, they have different connector arrangements at the bottom. If you get one with the connecting bottom plate, you might be able to use it to replace the one on your bike if it doesn't fit. Another option is to remove the bottom plastic piece from your dead battery and swap it to the new one. It's just held on by 4 screws, and you have to join two wires.

 

[Maxx]

Ive bought two Yosepower ones off ebay two years ago , 15ah, been fine , and had good customer service when I (thought) I had a problem.

 

[MikelBikel]

Yosepower +1, ordered thru amazon.
Just need a new 20in motorwheel and kit to go with it, hehe
You have to check voltage, of course, which polarity the bike has the input pins, and socket or plug in . I believe there was a choice?

36V 15.6Ah SilverFish E-Bike Battery Electric Bike Li-ion Accu with USB Port for MiFa, Rex, Prophete, Aldi

Power up your MiFa, Rex, Prophete, or Aldi electric bike with our 36V 15.6Ah SilverFish E-Bike Battery, featuring a convenient USB port for on-the-go charging. Enjoy extended rides with reliable Li-ion technology.

yosepower.com

 

[Nealh]

All will have a BMS incorporated.