AA AA4956 Car Battery Charger Maintainer UK Plug Fully Automatic with Crocodile Clamps Eyelet Connectors As Used By AA Patrols,Black/Yellow,1.5 Amp 6 V/12 V, Packaging May Vary

Okay long story short, my cousin had to jumpstart my car battery a couple of times in a span of a few months. He recommended me to get a battery charger which can charge the battery up. I seen this from AA and I bought it. When I used it, my battery was completely dead. I used this charger to charge up the battery for a few hours and my car started up straight away! Now that I know that this is a real deal I’m going to leave this plugged in until the green light shows which means the battery is fully charged up. Now if the battery goes again (hopefully not) I know that I would have to replace it even after a full charge. This was my first time doing this and it is extremely straightforward. Put the crocodile clips on to the + (red) and - (black). Turn the power on and press start on the machine. The battery light should be amber meaning that it’s charging. It’s a shame that it doesn’t tell you the % or how long it takes. But on the whole it’s an amazing bit of kit. Very quiet but convenient. Definitely a must by for your car maintenance kit.

I bought this for my aged BMW 335i, which has been sitting on the drive during the Covid pandemic. It had just had a new battery fitted, but drained that within a couple of months. I wanted something that would be permanently on. This bit of kit is dead simple to use and has a bunch of fail safes built into it. Pretty small but was man for the job. Saying that, the battery died again and was completely dead. This box of tricks would not revive it - came back with 'error'. I had to revert to my older larger battery charger to get the battery semi-functioning, before switching over to this unit. I had no worries leaving this unit on for a week - and I could see it was switching itself on/off over the week - this was something I wouldn't do with my 'proper' battery charger. I'd recommend this unit for trickle charging, it was man enough for my relatively large engine battery - and it was a good price. Glad I chose this over some unknown Chinese brand. Result!

This battery charge maintener is excellent. It is compact and easy to use. I have been using it to make sure my diesel car will start in this cold weather. I do a lot of stop start journeys and this runs the battery down without sufficiently recharging my car. I would recommend this charger/ maintainer to anyone in a similar situation. The product was at a fair price and has saved me the worry of not being able to start the car. The product is sturdy and hopefully will remain in good service for a long time. It was recommended to me by the mechanic who came to get my car started on a cold day. After testing the battery to be in good health he informed me of the problems of starting a diesel engine in cold weather that does not do many miles and flattens the battery by short stop/ start journeys.

So I ended up needing to get one of these because I'm off work and stuck at home having broken my ankle in 2 places quite badly meaning I can't drive. Recovery time is about 3 months so I needed to make sure my BMW 5 Series stayed in a workable condition. I've never had a battery charger or any trickle charger/maintainer before but someone mentioned I should get one so I went looking into it. I checked a lot of different products including BMW own brand (and almost bought that for piece of mind) but then stumbled across this at almost 20% cheaper than most products of a similar nature, and it had decent reviews too, so I bought it. On arrival, unpacking showed I have 2 connection options - croc clips for easy-to-remove connection to the +/- terminal points in the bonnet or actual clamps that screw on for a more "permanent" option. I went for the crocodile clips. The unit itself is tiny and IP65 rated to be used outside in fully waterproof and dustproof casing. The lead was about 2m which was JUST enough to reach from my driveway into my kitchen window but I need to use an extension lead up to the window to get it to a power socket - the cable could have been a lot longer. Connected up and following instructions - which were very easy to follow - I switched it on - it has a very simple panel - a circle button to switch power modes (it automatically selects 12V and my car needs 12V so did not touch this button at all), and a start play button. If at this point you've not connected the Battery Maintainer up correctly it apparently will beep loudly to let you know and one of the lights on the unit lights up RED. It spends the first few hours after hitting play button it assesses the condition of the battery before moving to a trickle charge mode. It took almost 2 days but it slowly charged my battery back to 100% and in the morning on the second day I heard a beep outside - that was the unit telling me it's charged. At this point the unit changes itself to a FLOAT mode. This keeps the battery at 100% condition very carefully using minimal power to do so - I've left the unit for a week now on this setting. This will help desuplhur the battery too as when left to run low, sulphur can build up and damage the efficiency of the battery. This is a great piece of kit all round. It is keeping my battery maintained in perfect condition while I'm unable to drive it for 3mths giving me piece of mind and a worthy investment as it's something I should have bought years ago! The only negative is the lead being only around 2m (1m each side of the unit) - it should be at least twice that length in my opinion, though if you have a garage with a plug point inside it wouldn't be an issue.

This is a very good charger and good value. Only 1 amp or so but brought a very flat bike battery and a half charged car battery back to full charge quickly (1 overnight each). Note that my bike battery is only 4Ah capacity and can only take 0.4 amp charge max. Therefore the charger thinks it's full after a few minutes when it isn't, and goes into ready / maintain mode (output drops to 13.5v). This isn't a problem, I just leave it connected overnight and it's fully charged by next morning. This battery hadn't been charged in 4 years and the charger seems to have revived it. The ring connector cable is permanently attached to the bike battery and hangs out of the seat for quick connection, I plug it in overnight once a month to keep it topped up. The croc clips supplied are a good size and well insulated to avoid shorting, can fully close car bonnet with these connected to battery. I use a Kancun 25' (8m) SAE extension cable with this charger to reach top of drive and it works perfectly without any voltage drop (much safer than using a 240v extension outside). I also have an SAE to OBD adapter for charging wife's Smart, as battery is hard to get at in the passenger footwell. When buying accessories check polarity of SAE plugs before use, SAE gender adapters are cheap on eBay if needed.

Great wee trickle charger for car batteries Never let me down and so easy to use.

I bought this product to use on a classic car that only gets used occasionally and in good weather. I needed a trickle charger that I could trust and was safe to leave on in a garage for long periods in winter when the car was rarely used. This does the job really well and maintains the 12v battery at a healthy level so that I can start the car first time and no longer need to keep recharging a flat battery. It’s competitively priced vs others on the market and a well known brand. It is easy to use and the instructions are clear, just make sure you follow them. Cable lengths are good approx 1.5m cable from the unit to the mains plug and 1.5m cable to the sturdy clips that connect to the battery. I have had this product and used it for 2 months now with no issues. I would recommend this product if you want a trickle charger. Important to note that it is not a product that charges a flat battery, but one that maintains a health battery at the right level if the vehicle is only used occasionally. You can spend more money on competitor products, but for what it is I think it’s good value and fit for purpose.

Good buy. Does the job