battery charging issues

Headshok

Pedelecer
Feb 19, 2018
73
4
53
Swindon
overall 25.8
each white wire from the black one
1=0.6v
2= 4V
3=4V
4=8.5
5=13.1
6=16.6
7=21.2
8=25.8
9=25.8
last wire red = 25.8
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,918
8,533
61
West Sx RH
1, 3 , 9 & 10 are dead.
Time to recycle it if those voltages are true.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,918
8,533
61
West Sx RH
Not realistic it's a false economy mixing new and old, new ones will wear out quicker due to lack of capacity likely in old cells & if four groups have failed some others won't be far behind.
 

Headshok

Pedelecer
Feb 19, 2018
73
4
53
Swindon
Thought so. Shop wants £300 for a replacement - can anyone recommend a good deal on something for my 250w hub system
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,918
8,533
61
West Sx RH
Best deal and cells would be a re -cell via Jimmy an ebikebatteries .co.uk, might be about the same price. Does the bike use CANbus ?
 

Headshok

Pedelecer
Feb 19, 2018
73
4
53
Swindon
Best deal and cells would be a re -cell via Jimmy an ebikebatteries .co.uk, might be about the same price. Does the bike use CANbus ?
not sure, it just has a crank sensor, KT display, and front hub motor.

is it worth getting samsung/panasonic over none make?
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,918
8,533
61
West Sx RH
Kt, generic battery then.
My preference would be LG or Samsung cells, no name cells are a lottery.
One cell producer quite a few won't have heard of is Molicell these are another top cell company from Canada.
 
Last edited:

georgehenry

Esteemed Pedelecer
Nov 7, 2015
1,446
1,264
Surrey
I have found my Lithium ebike batteries very good, long lasting and retaining very good capacity and range.

But I use my bikes all year round so the batteries are being used regularly. That said, the one on my Haibike can go around 4 weeks without being used and very occasionally longer. I store it in the house around 55% and it is holding up very well and will be six years old in March.

The thing not to do is to stop riding at the end of the summer, leaving your battery on the bike in a cold shed or garage and expect it to be fine in the spring.
 
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