Battery tender questions

[fried1765]

Deltran all the way for me and never had one fail although I've had 3 for more than 15 years and have them on something most of the time. My batteries last twice as long as neighbors and friends that use nothing other than booster cables when batteries are discharged.

I have NOT had the same no failure experience with Deltran (Battery Tender).
I have had two Battery Tenders fail in less than ten years.
I have a mix of 15 smart chargers.
Some Battery Tenders, some Battery Tender Jr's.,and some battery Minders.
I prefer the Battery Minder brand, but another to consider is the NOCO Genius.
I do NOT buy the cheap HF chargers.
I do not want to risk lighting my buildings and machinery on fire for a few pennies.

 

[charlessenf]

This unit will maintain both batteries. You can find it for less than $90 online

22-165-DL-WH



View attachment 580078

Or, get a Siamese (Splitter) connector for your existing maintainer and connect it (PARALLEL) to both batteries?

 

[charlessenf]

I never felt comfortable using the cheapo trickle chargers myself. I have one vehicle that I have a Deltran Battery tender JR with several others to use when I need them. You could get 2 shipped to your door for under 50$. In a service truck with dual batteries linked together I use a Battery Minder 12117 . This had worked for 5-6 years and now has become flaky to where I should replace it.

Battery Tender® Junior 12V, 750mA Battery Charger $44.95 SKU: 021-0123
BatteryMINDer® Plus Charger Model 12117 Exclusively Available thru Northern Tool

 

[charlessenf]

I keep a "smart" battery tender - Deltran by brand - on the tractor and motorcycle. This time of year those two vehicles see seldom use. The pickup and Jeep are used often enough to keep the batteries charged.

Last year I put an Odyssey AGM Group 31 battery in the tractor. The Deltran model 022-0211 is designed to work on AGM batteries.

Battery Tender Plus 12V Battery Charger and Maintainer: Selectable 6V, 1.25 Amp, 12V Battery Charger and Maintainer for Powersports - Switchable 6 and 12V Battery Float Charger - 022-0211-DL-WH $59.95