MihiT wrote:Higher CCA rating = better. I'd be looking for 600 at least.
The other way batteries are rated is amp-hours (Ah) but I'm not sure how relevant those ratings are for winching, since they're based on a slow draw over 20 hours.
"Deep cycle" will take a greater depth of discharge without damaging the battery, but the lower the battery voltage gets, the higher the current draw will be so oversize your cables for 9-10v or so.
I'd suggest bolting on the largest alternator you can find, too.
That winch is rated at 4.3kW, assuming 100% efficiency that's 330-360 amps at peak power, so more under load, and 480A if your battery gets down to 9V...
No you're just looking for high current DC cable (plenty of people use welding cable).Tumor wrote: Thanks for that....
So you're saying get cable that is rated at 9-10 volt? Just to clarify
Got any suggestions where to get a new alternator from?
And is the cables and the alter the only things I need to worry about?
Cheers
Swamped wrote:Search Falcon alternator upgrade for suzuki and you should find which alt's are a near direct fit. Often multi rib belt though so keep that in mind as you might have to find pulleys and also the waterpump can have the wrong reach. I had to fit a swift waterpump. I got an alt off an EL for one truck. Other one was off a Mazda but don't remember what car. Both were over 100amp.
I run 50mm welding lead and have my batteries in the back of the truck. Works fine and shifts weight backwards. The cable is often double insulated too which I like. The same cable as below.
Can you over-size your battery cable?Swamped wrote:Search Falcon alternator upgrade for suzuki and you should find which alt's are a near direct fit. Often multi rib belt though so keep that in mind as you might have to find pulleys and also the waterpump can have the wrong reach. I had to fit a swift waterpump. I got an alt off an EL for one truck. Other one was off a Mazda but don't remember what car. Both were over 100amp.
I run 50mm welding lead and have my batteries in the back of the truck. Works fine and shifts weight backwards. The cable is often double insulated too which I like. The same cable as below.
Swamped wrote:Generally bigger is better. I just use welding cable because its more flexi. Mine is actually 70mm, just went and checked. If I was winching more or had a bigger starter I'd probably go bigger. Its because of the distance though. If your still mounting the batteries in the engine bay that big wouldn't be needed.
Anything but gel. Industrial is probably perfect, designed to be thrashed, work 150% of the time, take vibration etc.Tumor wrote:Which battery would be the best because on the Century Battery site there are several deep cycle options.
- Deep Cycle AGM
- Deep Cycle Gel
- Deep Cycle Flooded
- Deep Cycle Industrial.
Thinking that the Industrial battery would probably be to "industrial".
And what is Century Batteries like? Are there better brands to go for or what?
MihiT wrote:Anything but gel. Industrial is probably perfect, designed to be thrashed, work 150% of the time, take vibration etc.Tumor wrote:Which battery would be the best because on the Century Battery site there are several deep cycle options.
- Deep Cycle AGM
- Deep Cycle Gel
- Deep Cycle Flooded
- Deep Cycle Industrial.
Thinking that the Industrial battery would probably be to "industrial".
And what is Century Batteries like? Are there better brands to go for or what?
Optima.
As to 50mm, check the manufacturers rating on it, it should specify voltage drop/meter at X load.
General welding cable of that size is about .5mV / A / m.
So say a 1m run batt to winch, 400A, = .2V no drama.
