Locating batteries.

bill alexander

Finding my (electric) wheels
Sep 24, 2016
17
3
75
london
Hi there.Can anybody suggest where I locate replacement batteries for a pre owned e bike I have recently purchased.Batteries are 3 x 12 volt 12ah. 150cm long 97cm wide 100cm high.. lead acid.Do not want to go lithium at the moment as quite frankly not sure if the e bike will actualy work so do not need the added expense. Push on terminals are both on the same side along the length unlike all batteries I have seen for sale on the net.Aware wiring can be changed for these batteries but as my next question suggests me and technical do not see eye to eye. I am unable to pull off the connectors which seem to have a sealing type application round them,not the rubber covers.Any suggestions for location and removal of spade connectors would be appreciated.Thanks in advance.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,917
8,533
61
West Sx RH
Probably best place is ebay to find and match you current batteries.
 

bill alexander

Finding my (electric) wheels
Sep 24, 2016
17
3
75
london
Thanks for your replies.Have seen a few on e bay but confused as most just say ok for mobility scooters ,quad bikes and childs toys.Ratings and sizes match but would they be ok for e bike.Thanks for any help.
 

Alan Quay

Esteemed Pedelecer
Dec 4, 2012
2,351
1,076
Devon
Hi there.Can anybody suggest where I locate replacement batteries for a pre owned e bike I have recently purchased.Batteries are 3 x 12 volt 12ah. 150cm long 97cm wide 100cm high.. lead acid.Do not want to go lithium at the moment as quite frankly not sure if the e bike will actualy work so do not need the added expense. Push on terminals are both on the same side along the length unlike all batteries I have seen for sale on the net.Aware wiring can be changed for these batteries but as my next question suggests me and technical do not see eye to eye. I am unable to pull off the connectors which seem to have a sealing type application round them,not the rubber covers.Any suggestions for location and removal of spade connectors would be appreciated.Thanks in advance.
Some pictures would help us to help you.

Sent from my HTC 10 using Tapatalk
 

bill alexander

Finding my (electric) wheels
Sep 24, 2016
17
3
75
london
Thanks for your reply Alan.Just had another look inside battery pack and realised I do not need to change the wiring as first thought to fit batteries seen on the net.Same question applies though will batteries of same ratings and sizes operate my e bike even though the description does not mention an e bike.Still having the same problems pulling off spade terminals.Any ideas.Thanks Bill.
 

malkie0831

Pedelecer
Aug 19, 2016
39
12
72
GB
Thanks for your reply Alan.Just had another look inside battery pack and realised I do not need to change the wiring as first thought to fit batteries seen on the net.Same question applies though will batteries of same ratings and sizes operate my e bike even though the description does not mention an e bike.Still having the same problems pulling off spade terminals.Any ideas.Thanks Bill.
It sounds like the terminals have been covered in silicon sealant or similar to keep the water out and increase insulation. A sharp modelling knife and patience should allow you to dig down to the spade terminals. If not you will have to cut the cables as close as possible to the batteries and crimp spades on to the cables to connect the new batteries.

Most eBay listings just list the popular applications for these small gel cell batteries, hence the reference to mobility scooters etc. I would suggest sticking to Yuasa batteries normally, but if you want to keep the cost down just to prove the bike works, better to just get something with the same physical size and capacity.
 

Alan Quay

Esteemed Pedelecer
Dec 4, 2012
2,351
1,076
Devon
If you insist on throwing money away on SLA's, then you need to make sure you get proper high drain ones. Many are designed for light/standby use. If you get those they will either not work, or not work for long.

The best you can hope for with SLA is 200 charge cycles. Get the wrong batteries and that could be 10 cycles.

www.vbat.co.uk is a trusted source for SLA. Expect to pay around £100 for 3 x 12ah deep cycle batteries.

Due to the way SLA's work, you can cut the ah rating in half, so these will give you 6ah of usable current. In practical terms that gives a max range of about 15 miles if you pedal hard.

SLA's don't make sense anymore I'm afraid.

Sent from my HTC 10 using Tapatalk
 

bill alexander

Finding my (electric) wheels
Sep 24, 2016
17
3
75
london
Thanks Malkie and Alan for your time.Had to snip off spade connectors and then the hard work started getting batteries out of case.Think Gorilla glue was used.Vbat looks good and they have 12 volt 14ah for £118.Thanks again.
 

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