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lincpimp · 07.19.2009, 02:39 PM

Well, looks like one or more cells in that pack puffed. Most likely due to the the grass putting addl load on them and they could not keep up. Given their specs they should be able to handle a 168 amps cont, but we all know that the specs are sometimes a bit exaggerated. Plus I have no idea what cells are in there, so you may have just got a defective cell, it happens.

4s setups in heavy monster trucks are just not a good idea. I have stressed higher rated packs that those smcs in a revo on 4s, so I can imagine the savage was pushing them pretty hard. The grass was probably just enough to send them over the edge.

Time for some hyperion g3 packs! Go up to 5s, and gear down to a 17t pinion for the same overall speed. 5s seems to be the sweet spot for the MMM/2200 setup anyway. I ran my lst with the mmm/2200 on 4900 5s rhino lipos (70 dollar pack, 20c rated) and it did fine with badlands, geared for 40mph. Not a light truck by any means, and those batteries had no issues keeping up.

Going up in voltage will reduce the amp draw, provided you lower gearing for the same overall top speed.

	(#2)
lincpimp Check out my huge box! Offline Posts: 11,935 Join Date: Aug 2007 Location: Slidell, LA	07.19.2009, 02:39 PM Well, looks like one or more cells in that pack puffed. Most likely due to the the grass putting addl load on them and they could not keep up. Given their specs they should be able to handle a 168 amps cont, but we all know that the specs are sometimes a bit exaggerated. Plus I have no idea what cells are in there, so you may have just got a defective cell, it happens. 4s setups in heavy monster trucks are just not a good idea. I have stressed higher rated packs that those smcs in a revo on 4s, so I can imagine the savage was pushing them pretty hard. The grass was probably just enough to send them over the edge. Time for some hyperion g3 packs! Go up to 5s, and gear down to a 17t pinion for the same overall speed. 5s seems to be the sweet spot for the MMM/2200 setup anyway. I ran my lst with the mmm/2200 on 4900 5s rhino lipos (70 dollar pack, 20c rated) and it did fine with badlands, geared for 40mph. Not a light truck by any means, and those batteries had no issues keeping up. Going up in voltage will reduce the amp draw, provided you lower gearing for the same overall top speed. Alot of Savage parts for sale!!!