48 volt battery or 36 volt battery

[Nealh]

At 72v he sure would make the controller pop.

 

[matthewslack]

@matthewslack

Here is link. Would you use a battery like this?

https://amzn.eu/d/93P5z0z

Not a chance. An uncased block of cells is immediately unsafe, and the bigger it is the worse it is in a crash. The nonsense claim about capacity indicates unscrupulous seller/maker targeting minimum price above all other issues.

Buy one good battery, not too small for your motor's demands, and overall you will spend less money.

 

[Only-Me]

I think you might be misunderstanding something. That splitter is normally so that you can add another 36v battery in parallel, so the voltage will still be 36v, not 72v. You have to look at the controller to see what voltage is written on it. If it says 36v, you can't fit a 48v one. if it says 36v/48v, you can, but then you need to change the voltage setting in the LCD.

I don't know your bike, so I might be wrong, but you can confirm either way by looking at the controller.

this is the balancer/splitter i have fitted with my standard 21ah slideout underseat battery a hailong 21ah on the bottle bracket and a yose 21ah triangle in the middle under crossbars all 3 batteries are 36 volt but the splitter will handle up to 3x 72 volt ones all batteries have to be the same voltages i am sorry for not explainlng more as i have 3 x 48 volt batteries for my wifes bike so i seen in the post that the user had a kt dual voltage controller so in theory i was thinking i could fit another balancer for 48volts and use 48 volts in hilly areas then switch back to 36volts on the flat that was my thinking more torque for hills ?

 

[matthewslack]

You would be carrying so much battery weight if you take both 36 and 48V systems with you!

 

[Only-Me]

You would be carrying so much battery weight if you take both 36 and 48V systems with you!

 

[Only-Me]

You would be carrying so much battery weight if you take both 36 and 48V systems with you!

Yes I understand what your saying but I’m used to weight as my bike is a two seater also my wife likes to get on the back of mine instead of riding her own bike (lazy so and so) also I would only carry one 48 at a time instead of my spare slidout 36 in my backpack

 

[thelarkbox]

this is the balancer/splitter i have fitted with my standard 21ah slideout underseat battery a hailong 21ah on the bottle bracket and a yose 21ah triangle in the middle under crossbars all 3 batteries are 36 volt but the splitter will handle up to 3x 72 volt ones all batteries have to be the same voltages i am sorry for not explainlng more as i have 3 x 48 volt batteries for my wifes bike so i seen in the post that the user had a kt dual voltage controller so in theory i was thinking i could fit another balancer for 48volts and use 48 volts in hilly areas then switch back to 36volts on the flat that was my thinking more torque for hills ?

Not the easiest site to search/navigate, but topbikekit has a broad range of KT controllers in various form factors but afaik only the generic silverbox style come with a dual voltage feature..

You will need to memorise/look up the reconfig procedure to inform the controller you have switched battery voltages.. (not a biggy but its a bit more involved than just switching over the packs. )

 

[Only-Me]

Not the easiest site to search/navigate, but topbikekit has a broad range of KT controllers in various form factors but afaik only the generic silverbox style come with a dual voltage feature..

You will need to memorise/look up the reconfig procedure to inform the controller you have switched battery voltages.. (not a biggy but its a bit more involved than just switching over the packs. )

Thank You I will check it out Cheers.

 

[Nealh]

Instead of confusing some posters (who maybe uncertain of your actions) by saying 72v one isn't expressing correctly the right detail. Some may see this or take this as in series rather then in parallel which one is doing.
One simply should be saying one is paralleling two or three batteries (of the same voltage) usng a splitter.

 

[Only-Me]

Instead of confusing some posters (who maybe uncertain of your actions) by saying 72v one isn't expressing correctly the right detail. Some may see this or take this as in series rather then in parallel which one is doing.
One simply should be saying one is paralleling two or three batteries (of the same voltage) usng a splitter.

That is why I posted a link to what I had fitted so people could look it up after reading my post.