Transformation of 36v battery to 48v

[Antenor]

Hi
Is it possible to transform a 36v battery to 48v?
I need to replace bms?

And in the case of add more range to a 48v battery...I only need to add more cells or a new bms is also needed?

Thanks

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[Matador]

Hi
Is it possible to transform a 36v battery to 48v?
I need to replace bms?

And in the case of add more range to a 48v battery...I only need to add more cells or a new bms is also needed?

Thanks

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Unweld the 10S config, reweld to new 13S config.
Buy a new BMS (no you cannot reuse your typical 10S BMS for a 13S).
If you have a 10S4P (40 cells), on can make a 13S3P (39 cells).

It looks simple like that, but personally I would do test each cells befor reassembly/welding. Match for capacity, internal resistance.

 

[Matador]

You can also ditch the BMS alyhogeother and use the battery neat; as is !
As long as you really know what your doing (don't overcharge cells over 4.20V ; don't drain the cells to irreversible destruction under 3.00V.)

 

[999zip999]

36 volt battery what 36 volt battery Lead, lithium, lipo. Give use a link of the battery you have. Plus what are you using it for ? What is the amp draw ? Best off buying a good 48volt battery and use 36v as is.

 

[Matador]

36 volt battery what 36 volt battery Lead, lithium, lipo. Give use a link of the battery you have. Plus what are you using it for ? What is the amp draw ? Best off buying a good 48volt battery and use 36v as is.

I assumed he meant lithium-ion but it's true it's good idea to ask for more specifications . Could also be lithium-polymer (whatever the "polymer" in question is. --> I always wondered why they dont call Li-po as Lithium ion.... To my understanding, the lithium ions are there, just chelated by some sort of anionic polymer, right ?).

Do BMS exists for SLA's ?

 

[999zip999]

They could be headways and just bolt on 4 more or sla one 12v or two 6v. Or ? Little info So just quess.
Pics and a link.please

 

[Antenor]

I am in the process of buying a battery, and I am not sure if y would go for 36v ou 48v...and knowing that I can transform the voltage is important.
Probably the smartest is to go for 48v with 12amp and if in the future I need more range, get more cells.
In this case if I understood I have to get a new bms also, right?

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[Antenor]

Lithium type...I am not a advanced user so bms is a go for me

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[Matador]

Lithium type...I am not a advanced user so bms is a go for me

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Just saying lithium is not very specific. Have a read here : http://batteryuniversity.com/learn/article/types_of_lithium_ion

 

[999zip999]

48v or 52v wakes up most setups. But first tell what motor and controller you are planing on using. The battery must match the setup. In that order. No cheap no name ebay battery ect. Get the information before you buy. Lots of junk out there to waste your money on. Do you have extra money ?

 

[Antenor]

Bpm rear hub, 25amp controler.
Is for a full suspension bike and I have no space on the frame. The idea is a sale bag battery and when going off road put it in a back pack.
If I can extend the capacity of the battery later, I would invest in good cells and bms . I know that's the most important part of the kit.

I will read the link...back to school

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