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Yeah, I guess, but just looking at OP's comparasion on post #26, I assume he is comparing the two batteries in their fully charged state.

What does the 100% represent? This suggests to me the battery is fully charged, but cells at 4.03v, somethings not right.

Or solder your main power wire to each series connection, but using a copper strip is prob. neater and keeps the pack flatter.

A few people seem to be having trouble contacting them at the moment.:(If they aren't answering email, I would hold off ordering anything from their website until they reply to you.

Bafang don't limit speed on their drives, that's down to the resellers programming. Any UK seller would likely do this to conform with the law.

Sorry, should of said make sure you have a male connector on the display.

That dosn't sound right, I would expect it to be around 300 rpm

Here you go, available from the UK on Ebay for around £50 if you can't wait. https://www.aliexpress.com/store/product/ebike-24V-36V-48V-intelligent-LCD-Control-Panel-LCD-Display-Electric-Bicycle-bike-Parts-for-KT/1314442_32613010219.html?spm=2114.12010612.8148356.1.1d0837b4YHczAD

No, the BBS01 250w will only run on a 36v battery.

AFAIK, the ETM is not a Bafang product. It sounds from the spec. that it's poss. a 250w casing with the 500w motor and controller fitted, but that's only a guess. Controller amperage has no "legal" limit, so if it's stamped 250w and you limit it to 15.5 mph, it's legal.:)

That is the legal speed cut off operating. You can replace the controller with a KT one that not restricted. Some clear photos or the wiring and connectors around the controller will help with recommending one to suit your bike. have you disconnected that white 6 pin connector in your photo?

That will work fine if you need 24v, give you alot more range and reduce the need to charge so often.

I think that's the auto cruise wire, but try it disconnected, it won't do any harm.

If you have a multi meter, the resting voltage can give you a rough guide to remaining capacity of your battery. Using the range between 42-32v, each volt as roughly 10%. So 36v would leave you 40% remaining, not exact but more acurate than most battery indicators.

It's a KT controller, so any of the KT LCD displays will work, but they still might not let you delete the speed limit, as it may be factory locked. Do you have a single white wire connector which just loops in/out of the controller? This is fitted on some KT's and is a speed restriction wire...

Click on "Berlin", then select the battery you require and stock will appear below in brackets( ). Delivery is around £15 in 3-5 days by Parcel Force. It's deff. worth looking at the damage to your carrier, it may be simple fix. I've not seen the carrier for sale seperately anywhere, You may...

What bike do you have? Is it a kit or factory made? Changing the display may not necessarily let you increase the max. speed of your bike, it will depend on the controller that is fitted. Photo of the controller may help.

Sounds like you have a bad battery connection,prob. from the damage to the battery carrier. As long as the battery is the same voltage, it can be any Ah capacity. You may need to change the connectors. Yose Power sell frog batteries, they have a 36v 13.6 Ah with decent LG cells for an extra £10...

I spotted that on the ES thread, very smart, makes my Sunkko 709 look like the worlds first computer! Very clever man, well done.:)

No excuse for being late for work with that bad boy on your commuter.