E bike battery upgrade.

[Ntumnyu Emmanuel]

Hello everyone, am new here, and need some detailed explanation how how upgrade the battery of my scouter.

The battery type is : 48V 12Ah lead-acid system.
I want to know if I can upgrade it to a 48V 20Ah lithium battery.
And also, if its possible, do I also have to change the charger?

 

[lnanek]

Yes, unfortunately, chargers are different for lithium vs. lead battery cell chemistries.

 

[AdR]

Technically you can upgrade to whatever size battery you can fit in your scooter that is compatible with your controller low/high voltage range. But as Inanek said, unless you already have a programmable charger, you will need a charger compatible with you new battery.

 

[Ntumnyu Emmanuel]

Okay thank you

 

[Ntumnyu Emmanuel]

Yes, unfortunately, chargers are different for lithium vs. lead battery cell chemistries.

Ok Thank you

 

[EeedUp_Builds]

Good move going to lithium — the 20Ah upgrade will give you noticeably more range and you'll drop significant weight vs the lead pack. Charger compatibility is the key thing to sort as mentioned above (lithium BMS needs a CC/CV charger, not the lead-acid taper type).
One thing worth checking before you buy: your controller's high-voltage cutoff. A 48V lithium pack charges to ~54.6V fully — most 48V controllers handle this fine, but worth confirming. If you're ever curious about how voltage actually affects speed, torque, and range, I put a guide together on exactly that: 48V vs 52V Batteries — What Actually Changes for Your Ebike Build — Eeed Up

 

[Ntumnyu Emmanuel]

Good move going to lithium — the 20Ah upgrade will give you noticeably more range and you'll drop significant weight vs the lead pack. Charger compatibility is the key thing to sort as mentioned above (lithium BMS needs a CC/CV charger, not the lead-acid taper type).
One thing worth checking before you buy: your controller's high-voltage cutoff. A 48V lithium pack charges to ~54.6V fully — most 48V controllers handle this fine, but worth confirming. If you're ever curious about how voltage actually affects speed, torque, and range, I put a guide together on exactly that: 48V vs 52V Batteries — What Actually Changes for Your Ebike Build — Eeed Up

Thank you