Originally Posted by TexasCotton
Once again I gonna pass on that .I am not gonna spend 20 or 675 dollars to charge even though the 675 is closer to what I need . I believe there is better out there than those two choices
I hate to break it to yah but I've been in the EV thing many more years than my age would suggest and I've picked up a little bit on how things work.
1. If you want a high voltage charger (one other than 12v) you gotta pay to play, the more voltage the more $$$ even if its not a high amp rate.
2. If you want to charge anything other than lead add even more $$$ to the cost of the charger.
3. If you want the charger to not only support NiMH but also to charge the NiMH correctly add more $$$
You will find that the chargers that are less than $675 and support more than 144v are likely not much better than the $20 capacitor charger for NiMH because few correctly support it.
Now not all hope is lost, there are plenty of used chargers on the market, in my mind you have a few options.
1. Open ReVolt, build your own charger from scratch, it could likely do it quickly and safely for less cost if you design the logic right. Since your pack requires such a low amp draw you could probably build it quite inexpensively by substituting a lot of less expensive low amp parts.
2. Buy an old NiCD charger(s) that will meet your volt requirement, your voltage is odd so you won't be able to get by with just one, trouble with these is they many times (for faster units) expected flooded NiCDs which can tolerate more overcharge than you NiMH ever could.
3. Buy a bunch of RC style chargers and bank charge the whole thing, your pack is a little tinker toy ahr wise and should be able to be handled by this type of setup.
4. Buy a more generic used or new charger, hope you can get the profile changed and build your own shutdown circuit (a shutdown circuit could add manners to any setup even a cap charger).
5. Buy or build a FLA charger that just happens to taper before the bend of your pack at your chosen amp rate so you can't fully charge but also can't enter the bend region where most NiMH chargers mess up. The prius doesn't much like fully charged packs anyway.