52v reention dorado battery

[El_Binco]

Where's the best place to order a 52v19ah or better reention dorado battery? Good cells, good price, fast shipping...in that order. Thanks for the help.

 

[El_Binco]

Not sure. It's going on a m2s r750. Will measure when I get home thanks. It's the 505 after further review.

 

[El_Binco]

Yes, that is the bike. Thanks @Timpo. Let me know if you find a 52v from a reputable dealer. The 48v 25ah sounds nice though.

 

[tomjasz]

Jenny Mao is legit.

 

[El_Binco]

Jenny Mao is legit.
Will def contact her and see about a 52v.

 

[El_Binco]

Yes I want to upgrade to a 52v. Power starts waning with the 48v battery when it gets about 50-60%.

 

[El_Binco]

That could depend on what kind of cells you have..
Some cells are a bit weak and have pretty bad voltage sag.

You can fix the problem by going from 13 series (48V) to 14 series (52V), but that sometimes mean that you have to stress more on each cell (for example, going from 5 parallel to 4 parallel).

Which one could handle peak output longer 52v20ah or 48v25ah? I would assume the 48v bc of more amp hours, but some have said you can get more top end power/speed with a higher voltage battery. I just want peak performance longer.

 

[El_Binco]

And yes, you will get more top end power & speed at full charge if you get the 52V.
As you can see, 52V is 58.8V at full charge and 48V is 54.6V.

However, 48V will (likely) have less voltage sag at the same voltage because more cells are in parallel.
I'm not an engineer, I have never compared this side by side in the lab, this is all theory, just so you know.

For example, let's say your current voltage is 54.6V.
That's 100% for 48V battery and 75% for 52V battery.
So you will get better performance out of 52V for the first 25% (100% to 75%), but after that, 48V battery will have advantage because of less voltage sag.
(because of 4p vs 5p)

Ok, thanks for your help. I will go with the 48v/25. Will be contacting Jenny soon.