With dune season quickly approaching in So. Cal. I pulled the quads and RZR out this past weekend and had three dead batteries. An overnight charge brought them back to life but I need to figure out the best way to keep all three on a battery tender during the off season. What do you guys do or use? Can one tender be hooked up to three batteries at once (with a little custom wiring) or should I get individual tenders for each battery? Does a tender need to be on all the time or would a few hours per day via a timer do the trick? Thanks in advance.

I buy the simple wall wart ones and keep them plugged in all off season. You can get them for around $20 shipped off ebay. I usually park them in my toyhauler and plug them in inside the hauler. I then plug the hauler in and wala no dead batts. I don't think daisy chaining them together will work and you risk over charging and even a fire if one batt goes bad since the charger will just keep trying to put juice in it because of the other batt connected.

A battery tender is intended to be left on all the time while not in use. It monitors the voltage on the battery and will automatically switch between charging and storage modes. As far as hooking up multiple batteries to one tender I've never heard of anyone doing that or if the unit will function properly in that situation. May want to contact the manufacturer to see if its OK.

You can get battery tenders with multiple banks for charging more than one battery up to 10 I believe but they arent cheap.Clicky

I also looked at the multiple bank batt tenders but the price seems crazy since the wall wart style are much less expensive even for several of them. I was told those multiple back style are designed for places that need to charge or stock lots of batts all the time like batt stores.

I would just buy one tender and cycle it to a different battery every few weeks. Physically disconnect the batteries from the ATV/SxS and no reason it can't sit for a couple of months with a charge on it and not drain.

Battery Tender for the Toys | Good Sam Community

LI_Happy_Camper
Explorer
Oct 20, 2014
Electric
64thunderbolt
Explorer II
Oct 16, 2014
go to Summit Racing, they have the real Battery Tenders. There is one that will do 4 @ one time. I have a 2 bank and it is on my Arctic Cat Prowler at all times @ home. Think I paid around $100 for it.
Fisherman
Explorer
Oct 12, 2014
N-Trouble wrote:
coolbreeze01 wrote:
I started using Tender Jr's 15 years ago and haven't had to buy a replacement battery since. When not out running, my stuff stays on a tender.

You have motorcycle batteries that have lasted 15yrs??? Come on...

When you take care of things like leaving the battery tender plugged in as recommended, it pays off. I have an old 12V 7amp gell cell that's over 20 years old and still ticking for my winter fish finder. Boat battery is going on 11 years old and still fine, did a load test and still over 80%.
offtohavasu
Explorer
Oct 09, 2014
LI Happy Camper wrote:
Is it possible to do the same thing for a golf cart? I just got a golf cart this year for my toy hauler and I am worried about leaving it plugged in my garage all winter to keep the batteries charged.

Gas or electric buggie?
trail-explorer
Explorer
Oct 09, 2014
Multi bank Battery Tenders are sweet, but as others have posted, they cost a small fortune.

I've even plugged one (single bank Battery Tender) in to my truck when it sits for months on end.
LI_Happy_Camper
Explorer
Oct 09, 2014
Is it possible to do the same thing for a golf cart? I just got a golf cart this year for my toy hauler and I am worried about leaving it plugged in my garage all winter to keep the batteries charged.
coolbreeze01
Explorer
Oct 03, 2014
N-Trouble wrote:
coolbreeze01 wrote:
I started using Tender Jr's 15 years ago and haven't had to buy a replacement battery since. When not out running, my stuff stays on a tender.

You have motorcycle batteries that have lasted 15yrs??? Come on...

I don't currently own any MC's.....But the new ATV's I've bought in the last 15 years have come with new batteries.........
Strabo
Explorer
Oct 02, 2014
nayther wrote:
i have one from Harbor Freight for years and it works fine.

X2 i keep mine in the rhino storage box in the bed.
N-Trouble
Explorer
Oct 02, 2014
coolbreeze01 wrote:
I started using Tender Jr's 15 years ago and haven't had to buy a replacement battery since. When not out running, my stuff stays on a tender.

You have motorcycle batteries that have lasted 15yrs??? Come on...
Bedlam
Moderator
Sep 29, 2014
I also like the multi-tap tenders but could not justify the price. Just get a power strip with multiple wall warts for all your batteries. Unless the batteries are the same age and capacity, do not put them in parallel for charging - This is the case with power toy batteries just like house batteries.