chuckp
Member
- Joined
- Jul 29, 2018
- Messages
- 415
Ok so not an ebike or cart but not sure where else to share the post.
My wife's disabled sister and brother in-law came to visit a few days ago and we were looking at her new chair.
The conversation turned to the numerous 18650 cells that are slowly over running the house and soon to the story of my homebrew Powerwall.
While we were talking my brother in-law mentioned that the new chair only came with one battery, a 24V 4A 96W lithium-Ion and that it was going to cost an extra 450 to get a second battery.
He then showed me that the battery slid into a slot in the frame and the connecting lead used 15A Anderson connector. In the other side of the frame was a empty dummy battery case.
Ok so here i am with a ton of 18650's that are good cells just not up to the capacity i want for my Powerwall Sat in a box just waiting for me to find something to do with them.
Light bulb moment lets knock together a test battery.
30mins,21 cells,a cheap Chinese 7S BMS later we have the start of a spare battery 24V 4.2A. Total cost to me so far 13.45.
Waiting for the Anderson connectors to arrive then we can take it out for a test run.?
My wife's disabled sister and brother in-law came to visit a few days ago and we were looking at her new chair.
The conversation turned to the numerous 18650 cells that are slowly over running the house and soon to the story of my homebrew Powerwall.
While we were talking my brother in-law mentioned that the new chair only came with one battery, a 24V 4A 96W lithium-Ion and that it was going to cost an extra 450 to get a second battery.
He then showed me that the battery slid into a slot in the frame and the connecting lead used 15A Anderson connector. In the other side of the frame was a empty dummy battery case.
Ok so here i am with a ton of 18650's that are good cells just not up to the capacity i want for my Powerwall Sat in a box just waiting for me to find something to do with them.
Light bulb moment lets knock together a test battery.
30mins,21 cells,a cheap Chinese 7S BMS later we have the start of a spare battery 24V 4.2A. Total cost to me so far 13.45.
Waiting for the Anderson connectors to arrive then we can take it out for a test run.?