Thread: Discharging Battery

check all your courtesy lights, my battery when I had it before some goose tagged it used to flatten quiet quickly the power was going to ground somewhere and buggered if I could find it, I used to see a lot of Ford sedans with this problem and it was the rotten boot light staying on and draining it. But a Fender dont got a boot!

Hi Craig, First question, how much driving do you do when you use the fender.

If your not fully charging the batteries in the first place then they are never going to hold a charge and to have both batteries going flat at the same time, that’s what it sounds like, they are not fully charged when left for the week.

Cheers

Drivesafe
Not a lot now missus has got the Stato.
Maybe a trickle charger and lead are in order.
Did fully charge the batteries 3 weeks ago however. Probablly only done 100kms in that 3 weeks. Should they not hold charge for more than that??
Cheers

Originally Posted by CraigE

Probablly only done 100kms in that 3 weeks.

Hi Craig, cause resolved.

Thats about 2 hours driving which equals about 2 hours charging which is way too short, then add the number of times you started the fender in that 2 hours of driving and your batteries have never had a chance to get any real charging.

Flat batteries need at least 6 to 8 hours continuos driving to get a full charge.

Yep, time for a trickle charger, both to keep the batteries fully charged but also to lengthen the batteries operating life span. Having batteries kept in a continual low state of charge is a sure fired way to kill them in quick time.

Cheers

Originally Posted by drivesafe

Hi Craig, cause resolved.

Thats about 2 hours driving which equals about 2 hours charging which is way too short, then add the number of times you started the fender in that 2 hours of driving and your batteries have never had a chance to get any real charging.

Flat batteries need at least 6 to 8 hours continuos driving to get a full charge.

Yep, time for a trickle charger, both to keep the batteries fully charged but also to lengthen the batteries operating life span. Having batteries kept in a continual low state of charge is a sure fired way to kill them in quick time.

Cheers

Drivesafe, I have a dual battery system with a H/D cranking battery and a 100A/H Deep Cycle battery conneted to a Red Arc dual battery solenoid setup in my 93 Disco, Question: Can I leave the batteries hooked up while I charge them with my battery charger, mostly I only get a reasonable charge into them by driving once a month, I will do many short runs 1/2 to an hour, I have always disconnected the batteries before charging, the charger is a Scorpion (Austech) Smart Charger 12V 6 amp which cuts in and out as needed, is it ok to to just connect to the main cranking battery without taking all the leads off, Thanks in advance, Regards Frank.