Why Don’t CTEK Battery Charger & Maintainer Clamps Hold Well on Side Terminal Batteries?

Side terminal batteries have flat, horizontal posts that sit recessed inside a plastic housing, so standard alligator-style clamps cannot grip them securely. The jaws need a vertical post to bite onto, and a flat side post gives them nothing to clamp. I learned this the hard way when my charger kept slipping off my truck … Read more

Battery Tender Plus 12V vs 12V 1.25 AMP vs 6V/12V Selectable: Best Powersports Charger?

Battery Tender Plus 12V vs 12V 1.25 AMP vs 6V/12V Selectable: Best Powersports Charger? The Battery Tender Plus 12V 1.25 AMP is the better pick for most powersports owners because it covers 12V batteries with a 10-year warranty, while the 6V/12V Selectable suits mixed-voltage garages with its switchable 6V and 12V modes. The 2 AMP … Read more

Battery Tender Plus 4 Bank Charger Review

Battery Tender Plus 4 Bank Charger Review The Battery Tender Plus 4 Bank Multibank Charger is a smart 12V multi-battery charger best suited for anyone keeping up to four seasonal batteries topped off, and it delivers 1.25 amps per bank across four independent stations. It handles lead-acid, flooded, AGM, gel cell, and lithium LiFePO4 batteries, … Read more

Is the CTEK Battery Charger & Maintainer Reliable in Near-Zero Cold Weather Conditions?

Yes. Most smart battery chargers keep working in near-zero cold, but their charging behavior changes as temperatures drop. I have left my maintainer hooked up through freezing nights, and it kept my battery topped up without drama. Just expect longer charge times and check that your unit is rated for outdoor winter use. Dead Batteries … Read more

Battery Tender 5 Amp Selectable 12V/24V Charger Review

Battery Tender 5 Amp Selectable 12V/24V Charger Review The Battery Tender 5 AMP Selectable 12V / 24V Battery Charger and Maintainer is an onboard marine charger best suited for boat owners and industrial users who want one permanently mounted unit for both 12V and 24V battery banks, and it delivers a claimed 2.4-hour charge time … Read more

Battery Tender Plus 2 Bank Charger Review

Battery Tender Plus 2 Bank Charger Review The Battery Tender Plus 2 Bank Multibank Charger is a dual-bank battery maintainer best suited for a car enthusiast who stores two 12V batteries seasonally, and it delivers 1.25 amps per bank with a smart 3-step charging program. It puts out 2.5 total amps, weighs 3.4 pounds, and … Read more