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Charging a battery in p/u truck bed - Printable Version

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RE: Charging a battery in p/u truck bed - johnnyliberty1776 - 05-23-2020

4 gauge wire from the alternator to the pickup bed where the battery will be. ok. I'm going to research that one. thanks for the input. Much appreciated.


RE: Charging a battery in p/u truck bed - B and C - 05-23-2020

You will need a 150 amp fuse on each end of that cable, one at the alternator and one at the battery in case the cable shorts to ground.


RE: Charging a battery in p/u truck bed - johnnyliberty1776 - 05-24-2020

That is some serious wire and fuse! Just thinking how I would run such a wire from the engine compartment to the bed of the truck? Any ideas?


RE: Charging a battery in p/u truck bed - tx2sturgis - 05-24-2020

You could use a battery isolator in your situation:


https://www.wirthco.com/battery-doctor/battery-isolators-testers-monitors/battery-isolator-series/100-amp


RE: Charging a battery in p/u truck bed - B and C - 05-24-2020

(05-24-2020, 08:41 AM)johnnyliberty1776 Wrote:  That is some serious wire and fuse! Just thinking how I would run such a wire from the engine compartment to the bed of the truck? Any ideas?

From the alternator to fuse to the continuous duty solenoid (not a starter solenoid, they are different) down to the frame.  Then along the frame to the bed.  Your bed should have a rubber grommet that you run the wire up into the bed through.  If no existing grommet, drill a hole and put a grommet in.  Parts store sell them. Connect a fuse and then to the battery.

A depleted battery will draw a lot of current.


RE: Charging a battery in p/u truck bed - Spaceman Spiff - 05-24-2020

(05-24-2020, 08:41 AM)johnnyliberty1776 Wrote:  That is some serious wire and fuse! Just thinking how I would run such a wire from the engine compartment to the bed of the truck? Any ideas?

I ran 6 AWG wire (positive and negative) from my truck battery to the bed of the truck following (at tying to) the left side frame rail, watching to keep clear of the front suspension moving parts.  Bringing the wires up between the inner and outer bed wall, through a hole I drilled for that purpose, wire run through a short piece of heater hose to protect from the sharp edges of the hole.  I use a 60A circuit breaker at the battery and a 60A ANL fuse at the battery.

Charging controlled by a BlueSea SI-ACR.

I wish I had used 4 AWG or even 2 AWG but I had the 6 AWG and it works ok.