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Quick Specs


• Battery extenders keep your battery at full charge on a continuous basis. Batteries not kept at full charge become sulfated. Maintain stored batteries at full charge to maximize battery life.
• Compatible with all Lead Acid Batteries: Standard (Flooded), AGM, Gel Cell
• Parasitic drain protection
• Fully automatic “smart” charging with advanced circuitry enables energy efficient and safe charging via Auto Meter’s advanced software and digital circuitry

Charging Modes
Desulfation | Bulk | Absorption | Maintain
• The BEX series chargers are fully equipped with sophisticated circuitry that will safely charge and maintain batteries without overcharging. Charging lights will tell you what stage of charge your battery is currently taking.

Indicator Lights
AMBER (Desulfation) - The battery extender is in desulfation mode
RED (Charging) - The battery extender is charging the battery
GREEN (Maintain) - The battery extender is safely maintaining your battery at full charge. Your battery is ready to go when you need it.

Ruggedized and Water Resistant
BEX series battery extenders are purpose built to resist water. Simply bring the charger to the source without removing your battery and connect the leads.

Safe Operation
• Spark Free Connection and Reverse Polarity Protection
• Charge current: 5.0 A
• Battery Voltage: 6v, 8v, 12v, 16v
• The BEX series chargers are versatile battery chargers with a compact ruggedized composite shell that makes them safe to set and forget on all of your household vehicles. Perfect for any motorcycle, boat, snowmobile, car, truck, RV, and lawn mower.

Lead Assembly
• 2 sets of leads - Clamps and ring terminals

3 year warranty

CEC and UL1236 Compliant

Feature Points
  • Compact ruggedized composite shells make these chargers safe to set and forget on all of your household vehicles. Perfect for any 6V, 8V, 12V, or 16V motorcycle, boat, snowmobile, car, truck, RV, ATV, golf cart and lawn mower battery. AGM overcharge impos
  • Safe to use indoors and out, BEX series battery extenders are purpose built to resist water and dust. Simply bring the charger to the source without removing your battery and connect the leads.
  • Features Spark Free Connectivity, Reverse Polarity Protection, and Parasitic Drain Protection for safe connection to all your batteries.
  • Includes quick-disconnect clamps and ring terminals for fast and hassle-free battery connectivity.
  • Charge current: 5 AMPS. CEC and UL 1236 Compliant. 3 year warranty.
  • Battery Extenders will safely keep your battery at full charge on a continuous basis. Batteries not kept at full charge become sulfated, which is the main reason for premature battery failure.
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Rated 1 out of 5 by from Dont buy it Bought it to maintain my spare 16 volt battery for my race car. Plugged it is and it started charging, battery was already fully charged before I started. Left it on and came back 4 hours later expecting to see it in maintenance mode. Charge light was still on and battery was super hot. Unplugged it and let it sit over night. Checked the battery with my Rock/Moroso 16V charger and battering immediately went into ready mode. Plugged the Auto meter extender it back in and lights came on and immediately shut off and wont come back on. I am returning it to Summit for a refund
Date published: 2019-12-29
Rated 5 out of 5 by from works good i used it to charge few 6 volt batteries, it did the job now the are back to work
Date published: 2019-06-04
Rated 1 out of 5 by from DOSNT WORK just received this but does not do anything, it only flashes all the corner lights hope they change it fix it or refund. shipping took more than a week, I tried to upload a video but it didn't let me .
Date published: 2019-04-03
Rated 1 out of 5 by from Tech Never charged the battery which already had at least 60% charge in it. Still plugged in and charge light never came on.
Date published: 2020-05-26
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When does the charger go in desulfation mode? Can it be manually put in desulfation mode??

Asked by: chris 4
Thank you for your question. The charger cannot manually be put into desulfate mode. It will automatically desulfate the battery when the charger determines it needs to be done.
Answered by: Alex at AutoMeter
Date published: 2023-04-19

I'm trying to 'top off' the 8V batteries in my golf cart. This unit applies 10V during the charging cycle but after literally days, the unit is still in the charging cycle. Never gets to the maintenance mode even with freshly charge new batteries

Asked by: RJames
If this unit never switches to maintain, we may need to tale a look at it. You may call us at 866-248-6357 to get an RMA for evaluation.
Answered by: Jim from AutoMeter
Date published: 2023-02-20

Hello,    I have a auto meter 9201 battery extender & it was connected to the battery with ring terminals. The negative post has a lot of corrosion.  What is the best was to hook it up to my c6 corvette so I don’t have a problem?

Asked by: AnthonyS
Ring terminals on the battery posts is still the best way. We advise cleaning the terminals prior to installation and the use of dielectric grease to impede the oxidation process.
Answered by: Jim from AutoMeter
Date published: 2023-11-13

when will the bex 5000 be back in stock for sale it works grate for 6v and 8v 12 v

Asked by: blockmal
Thank you for contacting us.This is currently an error on our site. We hope to have it corrected in 24-48 hours, but the BEX-5000 is in stock.
Answered by: Sarah from AutoMeter
Date published: 2021-09-21

I just replaced 6 arm starting batteries on my motor home with 4 Deks 1131mf standard batteries. I installed  a BEX- 5000 charger/maintainer. It indicates that it is charging at 12 volts but the battery type shows AGM and won’t reset to standard.  

Asked by: PEEB
Thank you for your question. The mode switches on the BEX units will only work if they are changed while the unit is powered on but NOT connected to a battery. Any attempt to change settings while connected to a battery will not work. You will have to have it powered up while not connected to the battery, then change to the desired setting. This will be retained in memory and then you can connect to the battery and use it normally.
Answered by: Natalia from AutoMeter
Date published: 2021-02-16

hello how many watts will it take to run it on a inverter?

Asked by: govac
Thank you for your inquiry. The BEX-5000 requires 600 watts.
Answered by: Jim from AutoMeter
Date published: 2019-12-17

If in maintenance mode and power goes off will it need to be manually reset when power comes back on?

Asked by: Forest
Thank you for your question. This is a smart charger and it will detect whether it needs to charge the battery it is connected to or if it just needs to maintain it. If it lost power it may go immediately into charging mode when it powers back on but it will quickly recognize the battery is charged and then switch to maintain mode.
Answered by: Zach from AutoMeter
Date published: 2019-05-15


Hi Ralph, thank you so much for contacting us. With the unit plugged into the wall, you should see indicators, especially when connected to a battery. If the battery is absolutely stone dead, there may not be enough voltage to wake the unit up. In order to keep the connections spark free, the charger looks for a tiny bit of voltage before turning on. With a totally flat battery, it will never see that and not turn on. With that said, please feel free to give our tech team a call at 866.248.6357, hit the Chat link at the top of the page or email directly via this link: Hope this helps!
Answered by: Joseph At AutoMeter
Date published: 2018-02-07
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