The DuraBoost Charger/Maintainer 750 is perfect for those wanting to charge and maintain their 12v lead acid battery. It constantly monitors your battery voltage and if it falls below 12.8V, the charger will charge the battery at a constant 750mA until the battery is fully charged (13.6V) and then turn itself off.
Checks for proper battery connection polarity and for internal battery damage
Automatically switches from charge mode to maintenance mode
Red LED light shows when charging and changes to green when fully charged
0.75 amp charge rate
Overcharge and Short Circuit Protection
Includes SAE quick disconnect battery lead and SAE Alligator clip lead
Safe for use on all 12v Lead Acid type batteries including, Conventional Flooded (wet), Factory Activated Maintenance Free (MF/FA), Absorbed Glass Mat Maintenance Free (AGM), and Gel (Gel Electrolyte) type batteries
I have four batteries that need to be maintained. Two motorcycles, a lawn tractor and a generator. I'm aware of maintainers that can simultaneously charge multiple batteries but I can't locate all four close together and I don't want to remove the batteries. The quick connect pigtail provided makes it as good as it gets when you want to use the device the battery is in. You can move one maintainer on a rotating basis to multiple batteries if so desired by buying or building additional pigtails. The plug is a common trailer connector item readily available. I purchased two Battery Maintainer 750s. With a total of three battery maintenance devices I only have to swap rarely as I ride one of the motorcycles quite frequently as long as there is no snow which is most of the winter where I live in SW Washington. I've only used the two new maintainers for two days but have observed them to stop charging as designed when the battery reaches a specific voltage. I believe the Battery Maintainer 750 is a very good value for the money.
PROS: Very Compact Maintainer, Quality Wiring Provided
I bought these to keep the Batteries in my 4 wheelers and lawn tractors on out property ready to use and these were just what I was looking for at an absolutely great price. I have just started using them but they brought all the batteries right up to full charge.
It's quite a good deal. I really like the colored led's that show exactly what's going on. The only problem I couldn't find much information on what the lights meant. What I determined is the red light means it's charging, green means it's fully charged and quits charging until the red light comes on for a short time to top it off, then back to green, etc. Seems like a good way to do it.
It is lightweight and easy to use. At first use on a partially discharged battery it was flashing red. Instructions did not explain what this meant. It later turned to solid red and then the next day to green. Definitely a slower charge than the 'Battery Tender' by Deltran. The cables are definitely inferior quality. For a few $ more the Deltran Battery Tender Junior is probably a better value but this is adequate for the scooter I use it for.
PROS: Harness Clips Included, Compact, Easy to use