RC-Monster Forums - View Single Post - FMA LiPos in an E-Maxx

MetalMan · 05:57 PM

One thing about Lipos is that you shouldn't use them when they are below room temperature (70 degrees). They need to be able to warm up so that they can provide maximum power. If you start them off at 50 degrees, then you would be likely to hit LVC because the cell isn't warm enough yet. This is very important for those of you that will be doing winter driving with Lipos where the outside air temp will be about 60 degrees or lower. To fix this, a simple hair dryer can be used.

EDIT:
You can see how this occurs when Lipos are graphed. Before the cells' temperature warms up, many brands of cells will make dip in their voltage even at 70 degrees. This is actually decreasing as newer and newer cells come out, though. Look at the purple (48C) line on the graph of this Kokam 3200mah cell:
http://img.photobucket.com/albums/v1...kokam-3200.jpg

	(#47)
MetalMan RC-Monster Mod Offline Posts: 5,297 Join Date: Mar 2005 Location: SoCal	10.21.2005, 05:54 PM One thing about Lipos is that you shouldn't use them when they are below room temperature (70 degrees). They need to be able to warm up so that they can provide maximum power. If you start them off at 50 degrees, then you would be likely to hit LVC because the cell isn't warm enough yet. This is very important for those of you that will be doing winter driving with Lipos where the outside air temp will be about 60 degrees or lower. To fix this, a simple hair dryer can be used. EDIT: You can see how this occurs when Lipos are graphed. Before the cells' temperature warms up, many brands of cells will make dip in their voltage even at 70 degrees. This is actually decreasing as newer and newer cells come out, though. Look at the purple (48C) line on the graph of this Kokam 3200mah cell: http://img.photobucket.com/albums/v1...kokam-3200.jpg SH Z-Car, Custom Crawler, 8s Savage, 12s XTM XLB 1/7 buggy, 4wd 4-link rear/IFS Pro4 truck, Custom Hyper 10 Short Course, Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz Last edited by MetalMan; 10.21.2005 at 05:57 PM.