dogman dan
1 PW
Nothing really wrong with the headway plan. Some will call them deadways, but many have made decent bike batteries with them. Run them at 3c or less and they should perform fine.
They are relatively decent in the discharge rate, so just 8 ah of the headways will run a modest powered ebike. At 25 mph, 8 ah should get you about 10 miles minimum.
Headways, Sanyos, pouch lifepo4, or even RC lico, 24 ah of 48v is a big awkward pig of a pack to carry on a bike. It will suck, so perhaps start with just 8 ah, or 16 ah max, and see if the range is enough.
You can build your pack with 8 ah of the headways, including the bms, and later on easily reconfigure to 16 ah later if you wish. Headways bolt up, so very little soldering involvled. That's a huge help to a pack builder.
The bms argument.... I just say if you have a bms, fine. If you trust a bms and never check on it, not fine.
They are relatively decent in the discharge rate, so just 8 ah of the headways will run a modest powered ebike. At 25 mph, 8 ah should get you about 10 miles minimum.
Headways, Sanyos, pouch lifepo4, or even RC lico, 24 ah of 48v is a big awkward pig of a pack to carry on a bike. It will suck, so perhaps start with just 8 ah, or 16 ah max, and see if the range is enough.
You can build your pack with 8 ah of the headways, including the bms, and later on easily reconfigure to 16 ah later if you wish. Headways bolt up, so very little soldering involvled. That's a huge help to a pack builder.
The bms argument.... I just say if you have a bms, fine. If you trust a bms and never check on it, not fine.