single battery...

[ZeroGravity58]

I am snowed in so i have nothing better to do but think about the truck I was browsing Jegs' and came across this http://www.jegs.com/i/Braille-Auto/147/B3121/10002/-1?parentProductId=763922 Ive never seen a battery this light. Think a single would start a duramax in cold weather? you could cut your battery weight by a 1/4 instead running two regular batteries.

 

[straightpiperoar]

I have the mpi kit and never installed the 2nd battery and I have not had any troubles!!!!!

 

[dmaxfireman]

550 cca sounds a little low but worth a shot if you keep a jump pack around. might wear the battery out quicker than normal. if you have not already i would get rid of the intake air heater if you drop to a single battery.

 

[ripmf666]

Mines starting fine with one and no grid heater. It's been done to 17 deg here and all well. I have seen light weight batteries with higher cracking amps then that one and lite

 

[ZeroGravity58]

i dont have the intake air heater anymore. Also i read up on their batteries and they rate them diffrent. the 550CCA is taken at 0 degrees like normal but they rate it at 11.5 volts where most do it at 7.5 volts. I read something on it earlier. Also all there specs is what the battery would put out for 30 seconds. so it would put at 550CCA at 0 degrees for 30 seconds. i read somewhere at 10 seconds they put at a few hundred for cranking amps. They are rated for 892 CA @ 30 seconds cranking but are rated at 1380 CA @ 5 seconds cranking.

 

[ZeroGravity58]

Thanks for the input Henry. Im thinking about dropping the 2 stock batteries since they are bad and trying one of these. the stockers have to be around 80+ LBS

 

[dmaxfireman]

in that case i would definitely be comfortable using it. i used one interstate in the cold months when i was running twins and it faired just fine

 

[ZeroGravity58]

if you did this which on would you remove? the pass side is closer to the alt and starter but the drivers side is closer to the underhood fuse box.

 

[ripmf666]

Loose the pass side

 

[JD4440]

Loose the pass side

The left one is primary anyway isn't it ?

 

[ripmf666]

Yes

 

[ZeroGravity58]

sounds good pass side it is.