48v 22ah to replace a 48v 13ah

[jeffkidney]

My controller is a i5 15amp current battery is 48v 13ah ime wanting to get a 48v 20 ah Woolf this have any adverse effect on my wires or motor etc

 

[MSG_76]

as long as your nominal voltage is the same you should be ok. Still, make sure to check how your controller manages the battery gauge for proper reading and match cut-off and max charge voltage either on bms or controller. battery amperage can be higher than maximum current on controller not under

 

[jeffkidney]

T

as long as your nominal voltage is the same you should be ok. Still, make sure to check how your controller manages the battery gauge for proper reading and match cut-off and max charge voltage either on bms or controller. battery amperage can be higher than maximum current on controller not under

Thankyou for your time ,so I should be ok hopefully a straight swap in the future .The range is pretty good now the extra would be piece of mind when ime touring!

 

[Sierratim]

My controller is a i5 15amp current battery is 48v 13ah ime wanting to get a 48v 20 ah Woolf this have any adverse effect on my wires or motor etc

As long as you are keeing the original 15A controller you shouldn't have any issues using a higher storage capacity battery of the same voltage. Enjoy the extra range!

 

[harryS]

Do your research on the battery vendor. A 48V22AH battery. per your title, needs to hold 78 or 91 cells (multiples of 13). Don't fall for scams like this.

 

[rich c]

One concern with the larger capacity could be a lot more heat build up in the controller and motor. That would happen if you run a lot of steep grades for extended periods of time.

 

[jeffkidney]

One concern with the larger capacity could be a lot more heat build up in the controller and motor. That would happen if you run a lot of steep grades for extended periods of time.

Why would this happen ?

 

[jeffkidney]

Do your research on the battery vendor. A 48V22AH battery. per your title, needs to hold 78 or 91 cells (multiples of 13). Don't fall for scams like this.

View attachment 72517

Thanks for that type error it not 22 think it's 19 /20 can't remember off hand

 

[Sierratim]

Why would this happen ?

If you keep the original 15A controller and the same 48V battery voltage over heating should only be an issue if the setup was close to its temp limit to begin with so running it longer with a larger capacity battery might trip a thermal potector.

 

[Johnny]

One concern with the larger capacity could be a lot more heat build up in the controller and motor. That would happen if you run a lot of steep grades for extended periods of time.

This is false, capacity has nothing to do with heat build up in controller or motor. This may only happen if he gets a battery with higher voltage.


@jeffkidney As long as the new battery has the same voltage as the last one you will not have any problems. Just make sure that your new battery is a high quality and safe one.

 

[RJC]

My controller is a i5 15amp current battery is 48v 13ah ime wanting to get a 48v 20 ah Woolf this have any adverse effect on my wires or motor etc

Just fitted a 48v 20ah Battery. To replace 13ah one. Rode 22 miles on PAS 4 on the flat before dropping the first battery level bar.

 

[jeffkidney]

Just fitted a 48v 20ah Battery. To replace 13ah one. Rode 22 miles on PAS 4 on the flat before dropping the first battery level bar.

Is that on throttle or pas

 

[jeffkidney]

Sorry miss read 22 on Pas on 4

Is that on throttle or pas

Miss read sorry 22 on Pas 4

 

[jeffkidney]

Is that on throttle or pas

Best way in my opinion is too run the battery down and make a comparison I can get 20 on a 13 ah roughly on the 1st bar so would expect more reletively I would be interested to see what you get out of a full battery please let me know and how you get on with it after a period of time ie any downs with the use of a bigger battery

 

[jeffkidney]

As long as you are keeing the original 15A controller you shouldn't have any issues using a higher storage capacity battery of the same voltage. Enjoy the extra range!

Thanks for the information it runs on the 250w hub this wouldn't have any effect ?

 

[Sierratim]

Thanks for the information it runs on the 250w hub this wouldn't have any effect ?

At the same 48V battery voltage the controller will deliver the same power to the motor that it always has since Power(P) = Voltage(V) x Current (I). The controller is limited to a max current (I) of 15A by design. The battery voltage is fixed at 48V. Thus the max power to the motor is the same with either battery regardless of battery capacity.

You can think of voltage as being analogous to water pressure in a pipe and water flow itself as being electrical current. Higher pressure (voltage) will push more water flow (electrical current) through the pipe. If the pressure (voltage) doesn't change the flow (current) will stay the same regardless of where the pressure (voltage) comes from.

 

[jeffkidney]

At the same 48V battery voltage the controller will deliver the same power to the motor that it always has since Power(P) = Voltage(V) x Current (I). The controller is limited to a max current (I) of 15A by design. The battery voltage is fixed at 48V. Thus the max power to the motor is the same with either battery regardless of battery capacity.

You can think of voltage as being analogous to water pressure in a pipe and water flow itself as being electrical current. Higher pressure (voltage) will push more water flow (electrical current) through the pipe. If the pressure (voltage) doesn't change the flow (current) will stay the same regardless of where the pressure (voltage) comes from.

Thank you and well explained to a luddite like myself

 

[RJC]

Is that on throttle or pas

PAS 4 only