12V Battery Tender Jr for $18.69 on eBay

ActiveAl · 2018-08-08T00:36:19.000Z

A good deal for Deltran-Battery-Tender-Junior-Jr-12V-Battery-Maintainer-Chargers shipped from the US on ebay. Price is $18.69, but seller is allowing only one per customer.

I have one of these connected to a garage queen, and it does a good job of keeping the battery fully charged. See Amazon reviews.

ChrisGarrett · 2018-08-08T00:59:48.000Z

I’ve had one for 6+ years, for topping off my solar mother batteries during non-hurricane season.

I wish I’d have gotten the 1.5A version, but 750mA doesn’t take long to top off my 22Ah/12Ah jobbies.

Chris

ActiveAl · 2018-08-08T02:21:57.000Z

ChrisGarrett:

I’ve had one for 6+ years, for topping off my solar mother batteries during non-hurricane season. I wish I’d have gotten the 1.5A version, but 750mA doesn’t take long to top off my 22Ah/12Ah jobbies. Chris

Hey Chris. I found that the 750 mA Tender Jr is adequate for maintaining a car battery in storage. But it should stay permanently connected. This not only keeps the vehicle ready to go, but extends the life of the battery.

ChrisGarrett · 2018-08-08T03:09:36.000Z

ActiveAl:

ChrisGarrett:

I’ve had one for 6+ years, for topping off my solar mother batteries during non-hurricane season. I wish I’d have gotten the 1.5A version, but 750mA doesn’t take long to top off my 22Ah/12Ah jobbies. Chris

Hey Chris. I found that the 750 mA Tender Jr is adequate for maintaining a car battery in storage. But it should stay permanently connected. This not only keeps the vehicle ready to go, but extends the life of the battery.

I agree 100% and it’s perfect for my smaller AGM/SLA batteries.

I did try charging up a car battery that was down and that didn’t turn out so well, lol.

Right tool for the job and all that noise.

I’ve since bought a Shumacher for that purpose.

We’re coming into the heart of hurricane season, so I have to get my BT Jr. out and top them all off. Thanks for the reminder!

Chris

tatasal · 2018-08-08T03:19:48.000Z

Does anyone know the AC input voltage? I hope it’s Autovolt (110-220v) as in my country we have 220vac.

atbglenn · 2018-08-08T03:44:48.000Z

I purchased this standard Battery Tender back in the 90’s to keep my winterized Mustang GT’s battery in good shape. Still works like a charm.

tatasal · 2018-08-08T03:46:16.000Z

@atbglenn: Can you check its input voltage?

flyboy · 2018-08-08T03:48:52.000Z

Some years ago, a photo site featured a DIY battery pack for shoe mount electronic flashes. It used a Battery Tender of some sort, but only for 6v. batteries. Do they even make those any more? I have the urge to try to build an auxiliary battery pack for my flash units.

atbglenn · 2018-08-08T03:51:52.000Z

tatasal:

@atbglenn: Can you check its input voltage?

It doesn’t say. I would think it only runs off 120 volts. The manual is long gone.

ChrisGarrett · 2018-08-08T03:53:40.000Z

tatasal:

Does anyone know the AC input voltage? I hope it’s Autovolt (110-220v) as in my country we have 220vac.

My BT Jr. states “120v, .18A, 60Hz.”

Output is 12v at 750mA.

Chris

tatasal · 2018-08-08T03:54:54.000Z

Thanks to you both gentlemen!

atbglenn · 2018-08-08T04:02:28.000Z

Now that I think about it, it definitely only runs off 120 volt circuits since it has a power transformer and no switchable primary winding.

sgt253 · 2018-08-09T11:43:17.000Z

FYI, seems like price went up.