lots of accessories for 20 bucks
Battery Tender
Thread Starter
Le Mans Master
Joined: Nov 2015
Posts: 7,382
Likes: 3,501
From: Lake Havasu City Arizona
Battery Tender
I would like your opinion on this trickle charger. The price seems too good.
https://www.walmart.com/ip/Black-Dec...ainer/21721663
https://www.walmart.com/ip/Black-Dec...ainer/21721663
Drifting
Joined: Jun 2015
Posts: 1,856
Likes: 694
From: Lagrange KY
Wouldn't use it as a charger per se, but as a maintainer it looks like it would be fine. The additional quick change attachments are a definite bonus. You'll need that cigarette lighter plug for the rear accessory port. FWIW, I have several of the 1.5 amp Schumacher units for multiple vehicles, lawn mower, etc. They've worked great as well, but had to buy the additional cigarette style attachment.
Thread Starter
Le Mans Master
Joined: Nov 2015
Posts: 7,382
Likes: 3,501
From: Lake Havasu City Arizona
Wouldn't use it as a charger per se, but as a maintainer it looks like it would be fine. The additional quick change attachments are a definite bonus. You'll need that cigarette lighter plug for the rear accessory port. FWIW, I have several of the 1.5 amp Schumacher units for multiple vehicles, lawn mower, etc. They've worked great as well, but had to buy the additional cigarette style attachment.
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Burning Brakes
Joined: Oct 2014
Posts: 802
Likes: 122
From: Goodyear Arizona
I've used the Deltran Battery Tender for over 7 years on four different vehicles with no problems.
FWIW, on the C7 I connect it to the positive terminal and alternator bolt under the hood. Works like a charm.
FWIW, on the C7 I connect it to the positive terminal and alternator bolt under the hood. Works like a charm.
Melting Slicks
Joined: Nov 2005
Posts: 2,074
Likes: 309
I've been meaning to ask this question: I bought my first battery tender from Walmart a few months back. I hooked it up to an Optima battery that I thought was dead. After several days, it brought it up to 12V.
Putting it to work on another battery that is pretty new but seemed to be totally discharged, I left it on the car expecting that it would take a while.
After days, things hadn't seemed to change much, so I got my voltage meter out and was surprised to see that the battery tender didn't appear to be putting out more than 5.5V. Is this the way it works, or did my first ever Battery Tender die on me?
Putting it to work on another battery that is pretty new but seemed to be totally discharged, I left it on the car expecting that it would take a while.
After days, things hadn't seemed to change much, so I got my voltage meter out and was surprised to see that the battery tender didn't appear to be putting out more than 5.5V. Is this the way it works, or did my first ever Battery Tender die on me?
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,718
From: Springfield MO
Pick up a float charger at Harbor Freight. They are on sale most of the time for around $5-$6.
They work just as well as the more expensive ones. I have been using them for years and years on my 56 & 64 Vettes and my Z06(and my lawn tractor) without any problems.
My cars can sit for 6 months with a Harbor Freight float charger connected, and they crank up with nary a problem. Isn't that what they are supposed to do?
They work just as well as the more expensive ones. I have been using them for years and years on my 56 & 64 Vettes and my Z06(and my lawn tractor) without any problems.
My cars can sit for 6 months with a Harbor Freight float charger connected, and they crank up with nary a problem. Isn't that what they are supposed to do?
Advanced
Joined: Jan 2017
Posts: 63
Likes: 25
From: Fort Dodge IA
They are not made to charge dead batteries. The second one may be a bad battery drawing down the charger. Put it on a known good battery to check it.
I've been meaning to ask this question: I bought my first battery tender from Walmart a few months back. I hooked it up to an Optima battery that I thought was dead. After several days, it brought it up to 12V.
Putting it to work on another battery that is pretty new but seemed to be totally discharged, I left it on the car expecting that it would take a while.
After days, things hadn't seemed to change much, so I got my voltage meter out and was surprised to see that the battery tender didn't appear to be putting out more than 5.5V. Is this the way it works, or did my first ever Battery Tender die on me?
Putting it to work on another battery that is pretty new but seemed to be totally discharged, I left it on the car expecting that it would take a while.
After days, things hadn't seemed to change much, so I got my voltage meter out and was surprised to see that the battery tender didn't appear to be putting out more than 5.5V. Is this the way it works, or did my first ever Battery Tender die on me?
Safety Car
Joined: Dec 2012
Posts: 3,858
Likes: 1,863
From: St. Louis Metro East IL
I bought the $20 Black & Decker years ago for my C6. It is still going strong on the C7. I only use it if I don't expect to drive the vette for a couple weeks due to bad winter weather.
Ron
Ron
Team Owner
Joined: Oct 2004
Posts: 25,583
Likes: 16,942
I have 3 Deltran BatteryTenders, the oldest of which is 10 years old, and working perfectly. I also have a couple of CTEKs that are also very good. Either will do a great job of maintaining a battery and prolonging it's life.
I've been using them religiously on all my vehicles, lawn tractors, boats, etc., for 20 years or so, and usually get double the guaranteed life on batteries.