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PowerMax PMBC 100 Amp 12V Battery Charger /Maintainer, Flash Reprogrammer & Adjustable Power Supply w/ 15ft Cables, Voltage Display & Mounting Brackets for RV, 12V Car Audio, Boat motors & LED + house

  • Based on 66 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by Oceanside RV Supply

Arrives May 22 – May 24
Order within 12 hours and 37 minutes
Available payment plans shown during checkout

Features

  • The Power You Need PowerMax can give some power to your RV, 12V Car Audio/ Stereo/ CV Radio, Boat trolling motors, and LED, and can provide some power to your house, lighting off-grid & solar backup. 12V Battery Charger has a power supply that you could connect to your car, then plug it in and play your car stereo without running the engine. It is rated for 100 amps.
  • How to charge a 12-Volt Battery? Connect your 12-volt battery to the battery charger by attaching the BLACK negative cable from your charger to the negative terminal of the 12-volt battery. Make sure to use the clips or clamps to connect to the terminal securely. Generally, the negative terminal is labeled . You also need to connect the positive cable from your charger to the RED positive cable of the battery. Youll find the + mark on the positive terminal.
  • AUTOMATIC THERMAL PROTECTION: PowerMax Battery Charger has automatic thermal protection. It can reduce output to safe levels if the unit temperature exceeds safe levels pre-set limits and protects against charger damage due to excessive heat. It automatically reduces the output voltage to prevent overheating and possible damage. Even though there is no risk of overcharging with the use of a high-quality charger, the battery should not remain connected to the charger for more than 24 hours.
  • SAFE TO USE: Powermax converter/charger will not boil the battery. It has an Intelligent way to charge & maintain your RV battery and is very easy to install so its a free hassle to use. 3-stage charging system built-in dramatically increases battery life for long last usage. Reliable, safe, & clean AC/DC power. It has reverse polarity, Overload & Thermal protection. 55Apm DC Power Output w/ built-in 3 stages smart charger.
  • NO NEED TO REWIRE: With no need to re-wire, installation is only 10 minutes! It has an automatic three-stage converter that handles every charging need for the RV, Boat motor and LED, house lighting, and off-grid & solar backup while extending the batterys life. Well-maintained batteries should never need more than two-stage (normal and trickle) charging. No more flickering lights in our camper.

Brand: Powermax


Color: Black or Grey


Product Dimensions: 6"D x 12"W x 4"H


Output Voltage: 14.6 Volts


Input Voltage: 110 Volts


Manufacturer: ‎POWERMAX CONVERTERS


Brand: ‎Powermax


Model: ‎PMBC Series


Item Weight: ‎10.15 pounds


Product Dimensions: ‎12 x 6 x 4 inches


Item model number: ‎PMBC 100A


Manufacturer Part Number: ‎PMBC-100


Voltage: ‎12 Volts


Date First Available: April 17, 2013


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 22 – May 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • So far so good.
OK. First of all the instructions are terrible. You would think that someone in the United States would simply write a one page instruction sheet, run it off on a printer and throw it in the box, but no. They have this horrible Chinglish information sheet which you have to decipher. If you are used to a simple, inexpensive battery charger, you can forget about that this one is bulky, and if you use the suggested 6 AWG grounding table (not supplied), IT GETS BULKIER. But it works for those long programming/ diagnostic sessions. Also a pretty great battery charger. ... show more
Reviewed in the United States on August 18, 2023 by Johnny Mac

  • Just What I needed
Using it for battery maintenance when troubleshooting. AC ripple is very low. Would not start a car when connected. Would not disconnect under high load. Connected it to my SUV, turned key to on position, and turned everything else on I could think of- current flow was 50A (my Powermax is rated at 100A). Left it like this for over 30 minutes and the Powermax did really good, very little heat generated. ... show more
Reviewed in the United States on August 16, 2023 by Jerold Trent Williams

  • Great continuous power supply for vehicle programming and battery replacement on newer vehicles
I purchased this because I own (our family owns) several vehicles that will basically puke themselves to death if you just yank the battery out and don't keep a power supply connected. I am the family mechanic and do a lot of car restoration so the price of this was VERY worth the cost. I have been able to replace batteries and do ECU programming on BMW, Mercedes, Range Rover and Chevrolet vehicles using this in the last few months, so well worth the price! ... show more
Reviewed in the United States on October 22, 2022 by Texas BellyDancer

  • This Tool is Amazing!
Works like it should. If you're going to then this is a must!
Reviewed in the United States on March 12, 2023 by Joshua Melton

  • A must have for DIY tuners...
Having one of these units handy when your programming a new tune or doing diagnostics on your vehicle is a must! Just remember to set the switch to "constant" voltage and connect the unit. The 14.7v default works great, so far I've had zero issues applying a tune when this is connected to the battery. ... show more
Reviewed in the United States on October 17, 2021 by zunar_j5

  • Great charger!
I bought this to charge my 150 ah lithium battery for my car audio system. It’s held up well after about 50 charges. The reverse polarity protection saved me a couple weeks ago lol. It was dark and reversed the clamps. The fuses popped but nothing else. I like how thick the cables are too - and the option for an external ground. ... show more
Reviewed in the United States on July 17, 2020 by T Wig

  • I have found the pre-set voltage to work fine at about 14
This unit is powerful and works perfectly for flash programming modules on cars. I also use it when doing diagnostic work. The seller was very helpful with questions. The manufacturer website says this has adjustable voltage. I found a youtube video showing you just have to drill the rivets and remove the top half of the housing and there is a pot in there that you can adjust with a screw driver. I have found the pre-set voltage to work fine at about 14.2 volts. ... show more
Reviewed in the United States on December 30, 2017 by BDE

  • Battery maintainer plus.
Excellent for automotive module programming.
Reviewed in the United States on January 26, 2022 by Chris Webb

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