Battery Tenders?

Thanks for the History lesson, eagle. Always open to learn something new. I never heard of this before.

I also came across this website. I see you can actually buy Battery Oil https://www.thermoil.com Lots of interesting info.
 
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Been comparing specs on B and D and Battery Tender brands. Battery Tenders are more costly than the B and D. The Battery Tenders are not switchable for 6v 12v, have to buy separate versions depending on voltage output.


Was thinking of buying a multi battery charger, but decided to buy individual chargers,. If a single battery charger fails, cheaper to replace then if the multi battery charger fails.



Any clear downside to using the B and D compared to the Battery Tender Brand? Both seem to be liked in the reviews on line.
 
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That's the one, but find it on Amazon for $17:

https://www.google.com/shopping/pro...X&ved=0ahUKEwiykrTgsPLeAhXCVN8KHaKoBxcQrRIIbA

Only downside is they use up wall outlets, but a power strip solves that problem. These are maintainers, only a couple amps output is all that is needed. The high-amp chargers are for charging up a discharged battery in a short time. You can get there with a trickle charger if you're in no hurry (days/weeks).




As an FYI, tried to order from using your provided link at 17.88, switched me to EBay. Picture on the listing showed the B and D. Ordered and Cart shows qty. 2 Battery Tenders. Canceled the order, did not feel safe due to product switch.


So far Walmart on line has them at 16.98 + tax with a special free shipping offer if you have a $35 dollar minimum order.
 
The Battery Tenders are not switchable for 6v 12v, have to buy separate versions depending on voltage output.
Any clear downside to using the B and D compared to the Battery Tender Brand? Both seem to be liked in the reviews on line.

FYI Deltran (Battery Tender) does make a switchable 6v/12v model https://www.amazon.com/Battery-Tender-Power-plus-Charger/dp/B016S7NHWQ?tag=atomicindus08-20

I have been using a 12v Battery Tender Jr. for years with no problems.
 
I have a Die Hard charger/maintainer that seems to work well, but who knows about anything Sears-related these days. This unit is about five years old. It's completely electronic. It assesses the voltage (6 or 12) of the battery it's connected to, shows a percent of charge up to 100%, then switches automatically to "maintain." Likely a lot of other brands work the same. This one was about $30.00. Never feels warm, even when charging.
 
I have had some failures with the old B&D maintainers. My Battery tenders are at least 10 years old and work great.
 
I use solar too, on my trailer battery, connected thru the 7-way lighting plug. It is a 10 watt unit, less than 1 amp, works great.
 
I decided to buy a couple because of this thread- found 2 on ebay brand new at 11. each


done deal!
 
As an FYI, tried to order from using your provided link at 17.88, switched me to EBay. Picture on the listing showed the B and D. Ordered and Cart shows qty. 2 Battery Tenders. Canceled the order, did not feel safe due to product switch.


So far Walmart on line has them at 16.98 + tax with a special free shipping offer if you have a $35 dollar minimum order.





Update - ordered 4 of the Black and Deckers - 1 of the 4 failed out of box, it would not detect a battery as being fully charged, and it shut off overnight. Ordered them from Walmart.com using PayPal. Easily returned via local Walmart, and since I used PayPal got the refund in cash. Also can choose to pickup at store, no shipping charge. Ordered another one.
 
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