ProTek R/C LiFe 4PK Car Transmitter Battery Pack (6.6V/2100mAh)
[PTK-LF-CTXF2100-2S]

ProTek R/C LiFe 4PK Car Transmitter Battery Pack (6.6V/2100mAh)
Coco - Rating: 5 of 5 Stars! Verified Owner Friday, April 29, 2011
If you have a 4pk or 4pkS and your in a grueling mains this is the battery you need!! makes ur radio 15% lighter and it will last 50% longer!!
2 of 3 customers found this review helpful.