Permobil F5 – Battery Size and Alternative Controls

[shirley_hkg]

How will it work without a BMS? And how do I charge it? I don't have a PL8 (I don't even know what this is ).

Although I can supply decent used PL8, I also recommend BMS.
Modern programmable, bluetooth connected BMS, with 1A~2A balance current （as below）, will do a decent job .
You can charge it via any charger if you don't mind long charging time. You may charge it with a more powerful psu, like ZXD2400.

a BMS does many things you dont want in a chair, like chopping off power completely every time it decides to... Which is dangerous to the control system, and you.
And they do a crap job of charging too...

Therefor, we use BMS for CHARGING ONLY.
Power your wheelchair from lithium battery DIRECTLY.

[shirley_hkg]

Jefferso have been using BMS too.

https://www.wheelchairdriver.com/board/ ... =2&t=12583

[fordragon88]

Jefferso have been using BMS too.

https://www.wheelchairdriver.com/board/ ... =2&t=12583

I didn't notice this message. For some reason, I thought he built it without BMS.

[shirley_hkg]

Yes, he recharge his chair via PL8 at home, whereas through an external BMS on vacation.

[Burgerman]

Head spinning?
Now the smoke is coming out too.

He charges via a PL8 normally.

When on holiday, PL8 lots bigger as it needs a power supply as well. So he uses a BMS but not on the chair. Theres little space to fit one. So used externally, with a power supply. You can do that with a ZXD supply too.

[fordragon88]

Post update;
I replaced the batteries on my 2022 Permobil F5 with lithium batteries using JK-BMS. I was able to install eight 105 Ah EVE cells.

I was also given another 2019 Permobil F5 as a gift.

Due to my arms becoming extremely weak, I've started using a chin control joystick. I'm transferred over the backrest to get a deeper seating position. I have nowhere to attach the chin control joystick without it getting in the way during transfers. Does anyone know of any inexpensive chin control mounts?

[shirley_hkg]

Chin Controlled Wheelchair Challenge (part two) – CoHo Ecovillage

https://share.google/BkAt0eYRpAfjD0w45