I'm trying to come up with a bettery battery pack for my electric bike
conversion and have found huge price differences between 9.0Ah D cells
made in China and those made in Japan or France.
I get more than 10 Ah from the 3 new 12V 12 Ah SLA cells on my bike,
using the 30+ amp full throttle very sparingly. That still only gets me
about 10 miles in a half hour or so with a 40 pound battery. I really
need to get twice that mileage and i don't like having to charge the SLA
immediately after discharge. NiMH cells are the obvious answer, and i'm
trying to determine whether the 9.0 Ah SAFT cell is worth 3x the price
of the 9.0 Ah Chinese battery.
I want to build a 64 cell 40V 18 Ah pack out of 9.0 Ah NiMH D cells. I
need 35A output for several minutes at a time. I can get Chinese cells
rated at 50A for less than $6 and the SAFT cells are about $15. Can it
really be that the SAFT cells will deliver 3x the performance? Anybody
have any experience with this? thanks...
16 years ago