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04.15.2008, 01:33 AM
If they have been getting "overheated"... then the amp draw is stressing the batteries.
Good fresh 4200s should do pretty good, but it's not uncommon... for nimh to struggle, especially if they are not in great shape.
Lipo or A123 is the best answer imo.... Dewalt pack off ebay (built into a 5s2p 4600mah) or a TrueRC 8000 pack both cost about the same as getting a pair of 7 cell 4200 packs and I think you will be much better off with either one.
Jammin CRT MM/Neu 1515 1700kv
Losi 8IGHT MM/Neu 1512 1900kv
Kyosho 777
T4 MM 5700
B4 LRP
XX4 MM 7700
old losi xxcr, MM4600 4s lipo 70mph+
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