BSATOM
1 W
This is a 1996 GT LTS3 frame with 1999 Marzocchi Bomber BAM Z2 forks.
Mxus 4t with 12g Sapim SS spokes laced into an Alex DM24 rim.
Femco dual wall front wheel for now.
Kenda K838 tires on order.
Hallomotor sine wave controller with LCD and regen braking (that might be a six step in reality from looking at the controller chip PDF).
New old stock Sanyo UF103450P cells that have individual fuses. Here is a link to a PDF http://www.meircell.co.il/files/Sanyo%20UF103450P.pdf I put a piece of that very thin very tough plastic used on laptop batteries in between each cell for isolation. Each stack of 14 cells is wrapped in 4 layers of Gorilla tape. The entire battery box is also lined with that plastic that I found at Ace hardware. Three ring binders are made of it so I bought two to line the battery box with. It is held on with spray adhesive. The cell packs fit perfectly.
Things I custom made are the battery box, 2 inch swingarm extensions using 7000 series aluminum just like the frame is made of, steel torque plates with edge catching nuts on grade 8 studs(they clamp fine with no deflection and hold the axle tight), staggered dual threaded controller mounting stand offs etc.
I need to wire up the battery pack(14s 14p) and controller up and install the 80A fuse I have in my parts stash.
This pack is permanently installed in the aluminum box with charge and balance connectors mounted on the back of the box. Soon I will get a BMS. I have 4 24v 1000w supplies to series up as I wish, so a BMS makes sense for the future.
The front 8 cells make a 16v 3.6ah pack for the 10w CREE headlamp I will run.
These batteries cost next to nothing and will put out 50a solid in this configuration. Hopefully 50 volts will be fast enough up top. It will be about a 21 amp hour pack based on 3.75 amp discharge tests of individual cells.
For a bonus there is a shot of a Schwinn Varsity trike with custom made axle and box. Those are Suntour steel forks with a MXUS 2807 motor. Old growth recycled redwood box with aluminum angle rescued from the scrap yard. More on that when it is done.
Mxus 4t with 12g Sapim SS spokes laced into an Alex DM24 rim.
Femco dual wall front wheel for now.
Kenda K838 tires on order.
Hallomotor sine wave controller with LCD and regen braking (that might be a six step in reality from looking at the controller chip PDF).
New old stock Sanyo UF103450P cells that have individual fuses. Here is a link to a PDF http://www.meircell.co.il/files/Sanyo%20UF103450P.pdf I put a piece of that very thin very tough plastic used on laptop batteries in between each cell for isolation. Each stack of 14 cells is wrapped in 4 layers of Gorilla tape. The entire battery box is also lined with that plastic that I found at Ace hardware. Three ring binders are made of it so I bought two to line the battery box with. It is held on with spray adhesive. The cell packs fit perfectly.
Things I custom made are the battery box, 2 inch swingarm extensions using 7000 series aluminum just like the frame is made of, steel torque plates with edge catching nuts on grade 8 studs(they clamp fine with no deflection and hold the axle tight), staggered dual threaded controller mounting stand offs etc.
I need to wire up the battery pack(14s 14p) and controller up and install the 80A fuse I have in my parts stash.
This pack is permanently installed in the aluminum box with charge and balance connectors mounted on the back of the box. Soon I will get a BMS. I have 4 24v 1000w supplies to series up as I wish, so a BMS makes sense for the future.
The front 8 cells make a 16v 3.6ah pack for the 10w CREE headlamp I will run.
These batteries cost next to nothing and will put out 50a solid in this configuration. Hopefully 50 volts will be fast enough up top. It will be about a 21 amp hour pack based on 3.75 amp discharge tests of individual cells.
For a bonus there is a shot of a Schwinn Varsity trike with custom made axle and box. Those are Suntour steel forks with a MXUS 2807 motor. Old growth recycled redwood box with aluminum angle rescued from the scrap yard. More on that when it is done.