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| Eury | Elite Veteran - Location: Ankeny, IA, USA. - |
The A123s don't drop until they have used up all their capacity. When I built mine, I tested them at a continuous 3amp draw, and they started at 7.4v for the first 50mah or so, dropped to 6.6v, and stayed steady there for the next 2200mah, at which point they dumped to the 4v range. They hold voltage under load much better than a Lipo or Li-Ion, you just have to measure your flights since you can't load test them. I run them on my gasser and on a couple of giant scale planes, they are awesome packs.
Here's some discharge curves I found on another site of a 10amp continuous discharge, which is a lot higher than your going to pull out of them with your 8717s, it stays constant at 6v until the end, well above the 3v or so Spektrum low reset. The next one is a 15amp continuous discharge, and again, they are well above what you need.
 
Nick Crego
Never trust a big butt and a smile |
| 05-07-2008 09:58 PM | | | |
