Is it possible to build a battery from cells ?
Posted: Mon Feb 22, 2010 7:43 pm
First off, hello to everyone and what a great site.
I am about to build my first electric bike and have been pondering over what battery type to use for a while now. The lithium polymer looks ideal, but the cost is prohibitive so I had half decided that good old fashioned lead acid would do, but today I spotted some rechargeable NiMH battery packs in the bargain bin of a local hardware shop. They are used for emergency warehouse lighting systems and are rated at 12volt 7Ah. I'm now considering linking half a dozen to make one large battery.
Going by my limited knowledge of electrics, I was thinking that building two banks of three in series would give the required 36v, and joining both banks in parallel would give 14Ah and be much better than the heavy lead acid option. Can anyone tell me if this would be worth doing ?
Cheers,
James.
I am about to build my first electric bike and have been pondering over what battery type to use for a while now. The lithium polymer looks ideal, but the cost is prohibitive so I had half decided that good old fashioned lead acid would do, but today I spotted some rechargeable NiMH battery packs in the bargain bin of a local hardware shop. They are used for emergency warehouse lighting systems and are rated at 12volt 7Ah. I'm now considering linking half a dozen to make one large battery.
Going by my limited knowledge of electrics, I was thinking that building two banks of three in series would give the required 36v, and joining both banks in parallel would give 14Ah and be much better than the heavy lead acid option. Can anyone tell me if this would be worth doing ?
Cheers,
James.