Join Date: Apr 1999
Location: Justin,Texas, Republic of TEXAS (USA)
Feedback Score: 0 reviews
You will give power to the battery and it will likely stop or decrease the drain on that battery when trailer is connected to truck while truck is running. The length of wire, truck + trailer, will cause enough voltage drop that a true charging voltage will not get to trailer battery. If battery drops to a lower charge level then the resistance of battery will increase and voltage needs to be over 13.9 to get any real current into battery to reverse sulphation on plates in the cells and restore full charge.
I am not saying that it is bad idea at all, it just will not replace charging the battery on a regular schedule to assure the battery lasts more than 18 months.
2015 F350 Platinum Max Tow What a beast with the 4.30 gears!
2006 F450 CC Hauler bed 4x2 6.0 L 6.0 auto, Lariat, 4.30 r/a, SCT, 4in exh. 103K New heads to repair diesel in coolant, 148K.
2006 F350 Lariat CC Dually 4X2, 6.0 auto 4.10 LS, SCT, airbags, 4 in. exh. 154K Rebuilt engine to repair damage from burned piston. One head to fix fuel in oil problem.
36 feet on the floor Elite/Outlaw LQ horse trailer.
35+5 foot double tandem axle flatbed trailer.
36 foot double tandem axle flatbed trailer
36 foot Platinum 6 horse LQ, side load, full width back tack
2003 EB Expedition 171K (no engine repairs, gas burners are the new longevity leaders)
2004 Volvo V70R AWD-high miler in fleet, 253K (no engine repairs) Hail totaled it but I kept it. Looks like a golf ball now.
Suzuki Carry KEI truck, 660cc 3 cyl DOHC EFI 4X4 5 speed RHD. Sort of a Smart Car sized pickup. Eats Gators and Mules for lunch.