Maypole0.5A 12V Automatic Trickle Car Battery Charger 9 Stage Charging Cycle Maintenance Charging Lead Acid AGM GEL

This really is great. It works so well, keeping the car battery topped up, as I don’t use the vehicle a lot. Easy to use and follow the light system. I’ve even just brought a 2nd one for my motorcycle.

Good little charger use all the time , saves buying new battery

I only use my Classic car afew times and my battery always let's me down thus i bought this to top up the battery when it needs it. It is like putting your TV on standby thus not of electric is used and it is cheaper than keep buying new batteries. Good price and quickly delivered, many thanks.

Bought as a present for a retired relative who doesn't now drive his older dirty diesel car enough miles to keep it charged up properly. Research on this and other sites indicated this brand/model was one of the best of the 'cheaper' trickle chargers.So far it has worked well and it has enough safety features for my slightly nervous relative to use with confidence.Hard to imagine why it might be worth spending more on another unit that does the same job.

This charger is brilliant charged my motorcycle very happy with this charger

I like the Maypole Mp7402 it is simple to use.I purchase this charger mainly use for maintaining a 100AH good healthy condition 12V lead acid Mercedes battery,i connected the crocodile clip to the + - car battery terminals,i then turn on battery charger by plug in to the mains the battery charger immediately had a green light flashing,i left the green light flashing went for a KFC i was hungry,when i came back and check the green light had turn solid green.I left the battery charger plug in to the mains from the day i plug charger in till now and everything is fine,I know everything is fine because when a Mercedes SL don't have enough battery power it will make a buzzing noise,it can be hear easyer standing near the car so far this didn't happen.Although i have only try the maintaining function i believe it can also charge power low 12V car battery aslong the 12V battery itself is in condition.This car battery Charger & Maintainer has good price for valve I Recommend.

Great gadget for hybrid cars if you park in a garage.

Really erratic performance with this one.First time I connected this to the car battery, it blinked 10 times, and then went red (solid), half hour would pass and then it would start blinking red again. I turned it off and back on, and it would repeat the same thing, another two times or so. Eventually, it would just go onto blinking after the intial 10 blinks. With no idea how to proceed, I just left it on hoping the trickle charger would slowly but surely provide enough juice to get it from blinking red to static red, two weeks passed and using a multimeter, there showed no signs of any increase.I reconnected the battery back into the car, and tried a portable jumpstart device on it, which successfully worked, but it still wouldn't be driven enough to provide sufficient charge back to the battery, so after I turned off the car, I reconnected the trickle charger hoping that the voltage would be sufficient enough to get the indicator to change and it did. I managed to get the indicator to remain on red, and it stayed there for nearly 8 days - I was periodically checking the voltage using a multimeter and the voltage keep slowly rising. Eventually it turned to blinking green, an sign it reached 80%, I was happy to see progress, went to sleep and woke up the next morning to a blinking red, and the voltage had dropped. I turned it off and back on, and the static red appeared. The same thing again happened the next day. Luckily three times was the charm, and the blinking green turned to solid green.The car battery was old, at least 10 years, maybe nearly twice that if it was the original, so maybe that was why I had difficulty with it. When i first tested the voltage, it was low at 5 volts. After jumpstarting it and reconnecting the trickle charge, it was 10.66volts, and at it's highest peak that I tested it at was at 14.35v. Once it turned green, it showed 12.75volts. Even though the voltage was low, the instructions mentioned a constant blinking red light was a sign of a voltage of 2v, so for a 5v output, that should have been sufficient enough to avoid the blinking red.Anyway, while this device did work eventually, in my situation I had to use another device too. It was a frustrating ordeal, but it keeped it charged up long enough for the car to be driven off to a car recycling branch.