Dual Battery Setup

[tekdeus]

If you have an account on SF there is a long discussion about this: http://www.supraforums.com/forum/showthread.php?t=229888

 

[suprra_girl]

Thanks for all your input about using a multimeter and measuring the amps but ahhh, how do you think I got my measurements in the first place???

Prosport Peak & Warn Gauge x 2 at 0.02 each
Turbo timer with other memory functions 0.03
RTR (Light retractor) 0.01
Radio 0.02

Does anyone have any ideas on how I could check the amp draw once I've turned off the car, without disconnecting the battery? LOL My multimeter only does 10A so If i start the car with it connected I'll probably be making a new world record on how high I can explode a multimeter hehe

 

[tekdeus]

It takes a little slight of hand: connect your meter to the battery terminals first, then lift off the terminal from the battery so any continuous current load gets transferred to the meter. If you want to test immediately after shutting the car off, get a helper to help you

 

[IJ.]

Careful not to let the

out

 

[tekdeus]

^^LOL! It stinks somethin' fierce!

 

[suprra_girl]

Alright!! So I managed to do the test without letting the smoke out

Its been sitting for a day. Battery still appears fine, 12.1v static.

Amp reading after sitting, 0.11

So it doesn't appear anything is "sticking"

Will 0.11a drain a 135rc battery in 3-4 days?

Edit: So I found a calculator and my usage 1.32w it should only drain the battery in about 2-3 weeks (499 hours)
So maybe the battery is dead/dying?

 

[suprra_girl]

So, as strangely as my problem appeared, It then promptly disappeared :/
I checked the battery immediately after running and the drain was still 0.11.
Mathmatically it would take 499 hours for my battery to drain with that so it didn't make sense.

But hey, problem is gone and I'm going to bolt in a 120amp alternator to take care of my audio system

 

[figgie]

it got scared because you were snooping!!

Typical electrical problems...