PowerMax Battery Chargers

12 Volt 3 Stage Battery Chargers


PowerMax PM3-35 35 Amp Battery Charger $110	PowerMax PM3-45 45 Amp Battery Charger $116	PowerMax PM3-55 55 Amp Battery Charger $125


PowerMax PM3-75 75 Amp Battery Charger $165	PowerMax PM3-100 100 Amp Battery Charger $205

24 Volt 3 Stage Battery Chargers


PowerMax PM3-20-24 20 Amp 24 Volt Battery Charger $190	PowerMax PM3-30-24 30 Amp Battery Charger $210	PowerMax PM3-40-24 40 Amp Battery Charger $310

48 Volt 3 Stage Battery Chargers

PowerMax PM3-20-48 48 volt 20 Amp Battery Charger

PowerMax PM3-20-48
20 Amp 48 Volt Battery Charger
$215

Applications

• RV/Marine applications
• Two way radio base stations
• Communications systems
• Security systems
• Test equipment
• Automotive & Marine displays
• DC computers
• 12, 24, or 48 Volt lighting systems
• OEM applications

Design Features

• Advanced switch-mode technology
• Reliable power with minimum weight and size
• Circuit innovations minimize output voltage ripple and RFI
• UL listed.

These PowerMax PM3 units are 3 stage units using a built in microprocessor controller to regulate charger functions, which provides efficient charging to the battery charger's maximum output (constant current), and monitoring of output voltage as it rises to the charger's absorption set point. The battery charger then maintains this absorption voltage (constant voltage) until the battery is fully charged. The charger then drops the output voltage to the 3rd mode, or "float" stage, which is safe for long term battery maintenance.

The PM3 series is protected by multiple protection features for a long, trouble-free life. 1) Reverse Battery Polarity Protection. 2) Brown-Out Input Protection. 3) Over-Current Protection - cycle by cycle peak limiting as well as rated current limiting to maximize the life of the charger. 4) Over-Temperature Protection. In addition, it is designed with a “proportional” fan control circuit. Fan speed is directly proportional to the converter’s internal ambient temperature. This enables the fan to turn on and off very slowly, minimizing unwanted fan-starting noise.

The PowerMax units are similar to the IOTA converters and chargers, in design and function. While excellent quality units, with a 2 year warranty, they are built in China, as IOTA Engineering units are now. Some companies still market Iota units as US built, when they no longer are. The PowerMax units are a lower cost alternative, but we don't have the same historical experience to judge them on.

Frequently asked questions about battery charging

Be sure to check out our Tutorials!

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