Moving Battery To Rear/Wiring

[AssBurns]

I bet you blow that breaker on your first winch pull. 150A is way to low for a winch load. Get a Blue Sea disconnect. 350A constant/600A intermittent. It pulled me up Claw Hammer. lol

https://www.amazon.com/gp/product/B000MMC914/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Just to update this thread.

I did a long winch pull up a pretty damn steep hill. Used the entire usable length of the winch line and did a single straight pull to the top without the breaker popping. It wasn't a crazy high load on the winch since I was able to roll up the hill, but it was so steep that my tires were spinning the entire time with almost zero traction the entire way. I am pretty comfortable at this point with the load capacity of the 150A breaker with my setup. I'll have to test it out on some higher load pulls to see if I can get it to blow the breaker.
My thoughts are that the higher amperage alternator being closer to the winch helps keep the load off the battery/ circuit breaker.

 

[Stairgod]

Just to update this thread.

I did a long winch pull up a pretty damn steep hill. Used the entire usable length of the winch line and did a single straight pull to the top without the breaker popping. It wasn't a crazy high load on the winch since I was able to roll up the hill, but it was so steep that my tires were spinning the entire time with almost zero traction the entire way. I am pretty comfortable at this point with the load capacity of the 150A breaker with my setup. I'll have to test it out on some higher load pulls to see if I can get it to blow the breaker.
My thoughts are that the higher amperage alternator being closer to the winch helps keep the load off the battery/ circuit breaker.

What size alternator are you running? And what rpm was the engine running at? Remember that alternators don't put out even close to max Amos at idle.

 

[kasnerd]

here to do this. plan now:

keep 27f battery
buy plastic battery box and strap
metal plate through bed box on the inner fender, box straps down to the plate (no holes to leak)

Any advantage going on a different size battery? 10k winch (smitty says 320amps at 6k lb pull) is pretty much it. Have led bars but they are single row, not thirsty. No need for dual batteries . Alternator is stock toyota 130amp.

 

[Stairgod]

here to do this. plan now:

keep 27f battery
buy plastic battery box and strap
metal plate through bed box on the inner fender, box straps down to the plate (no holes to leak)

Any advantage going on a different size battery? 10k winch (smitty says 320amps at 6k lb pull) is pretty much it. Have led bars but they are single row, not thirsty. No need for dual batteries . Alternator is stock toyota 130amp.

Depends on how much winching you need to do. Long pulls will drain the battery, but you will probably need to let the winch cool down anyway, so...
I have been winching on a group 25 for years and still haven't installed the second battery that I planned on.
You are probably good to go with that plan, although I always say go as big as you can. Can never hurt to have too much battery, but if you have one that is too small, well

 

[4runner DOA]

here to do this. plan now:

keep 27f battery
buy plastic battery box and strap
metal plate through bed box on the inner fender, box straps down to the plate (no holes to leak)

Any advantage going on a different size battery? 10k winch (smitty says 320amps at 6k lb pull) is pretty much it. Have led bars but they are single row, not thirsty. No need for dual batteries . Alternator is stock toyota 130amp.

Can always get a 240a alt. There's a place near you in yucaipa that sells them. Might be able to get the 130a redone vs buying one already made.

 

[kasnerd]

Depends on how much winching you need to do. Long pulls will drain the battery, but you will probably need to let the winch cool down anyway, so...
I have been winching on a group 25 for years and still haven't installed the second battery that I planned on.
You are probably good to go with that plan, although I always say go as big as you can. Can never hurt to have too much battery, but if you have one that is too small, well

welp, one way to find out! ty for the info.

 

[kasnerd]

Can always get a 240a alt. There's a place near you in yucaipa that sells them. Might be able to get the 130a redone vs buying one already made.

ohhh... that's spicy

 

[Stairgod]

welp, one way to find out! ty for the info.

So upon further thought....
Group size changes seldom get you that much more capacity. Car batteries have an annoying habit of not using an amp/hour rating. But CCA * 0.19 will give you the reserve capacity and RC/2 +16 will give you the amp/hour rating. So going from a 750CCA battery to 1000 CCA will net you an extra 23.75 ah.
At full winch load, that doesn't add up to much extra winching time. However a larger battery does handle a heavier load with less stress to the battery. But dual batteries are a much better way of handling it.
So infrequent winching the 27 should be fine. Frequent heavy winching? A bed full of big batteries

 

[AssBurns]

What size alternator are you running? And what rpm was the engine running at? Remember that alternators don't put out even close to max Amos at idle.

It's a 140 amp, so not too much more than stock (80 amp). When winching I was probably near 1800-2000 rpm. Just enough to keep the tires spinning and the engine RPM's up a little without too much tire spin.

 

[4runner DOA]

ohhh... that's spicy

View attachment 23160

Pretty sure that's the place. I've had the 240 in the 4runner for about 3 years now.