JZK20A Intelligent Solar Charge Controller with LCD Display, USB Port, Battery Protection for LED Lighting

I had a problem with the first one that was supplied, but this was quickly changed with no fuss. I have been using as part of a small solar system I installed at my allotment to control a water irrigation system pump and it has been working all year with no issues.

My last one just stopped working ( a different make ) I have no idea why which I paid £20 for last year, this one has all the info on screen, shows icon when charging, I have it on a camper and as soon as I start the engine, this go'es into idle.I am seeing a big difference already and for less than half the price of the other it is a bargain. It makes me feel like getting another one just in case my home one packs up.

Low cost and works well, easy to use, nice peace of mind knowing you won’t over current a car battery with this. Most low power solar panels will output anything from 0-19v which isn’t good when charging batteries. This will regulate the current so it won’t exceed 12v making it safer, it also stops the solar panel draining your battery at night. Only downside is you can’t set individual timers it limits to on at night or on all the time. It’s really designed for lights but can be used for many other solar uses.Still not bad for the low cost.

Had this just over a week and it seems to be working very well. Instructions fairly basic but good enough to set it up without any problems. Setting the float voltage to 13v (the lowest setting) seems to keep the battery on trickle charge at a constant 12.6v when hooked up to a 10w solar panel. Would have liked to keep it a little lower say 12.4v but not sure that is possible with this controller. That said, perfectly happy with it and full marks for something that only cost £10. Can't comment on long term durability, not had it long enough.

Not yet fitted, bought to control solar cell charger on a yacht, so it will be five or six months before the weather is suitable to give it an adequate test. But other reviews indicate that the voltage display is inaccurate, significantly different from the voltage as measured by a good multimeter. I have to assume that those reviews are correct.Other reviews also indicate a quiescent current of 10mA, which is very high (I would expect microamps to be achievable) - so in dull conditions it could consume more energy than the solar panel produces. Again I have to assume that those reviews are correct. I therefore intend to install it with switching to allow me to control whether it is in circuit or not; but the manual does not give me enough information to determine whether I can get away with a single DPDT switch (OK if the "ground" side is a common rail) or whether I need four switched poles (needed if fully floating).The implications for that decision are significant; I have been able to find only one 4-pole multi-throw switch with a suitable current rating, and the price of that is around £50. A much cheaper alternative is a pair of standard DPDT switches mechanically slaved together, which will entail a minor workshop job. But it would be good to be able to tell from the manual whether that is needed!

Myself and also some people I know bought the product and it’s not effective at all.The instructions show you how to use but the actual controls are not working. You can just scroll through the menu but you can’t adjust the options as you want. Also, you connect the battery and solar panels to it but the consumer will never work as the power doesn’t go through. Don’t waste your money.

The media could not be loaded. I said it feels well made and it is. I get some items from China and you can see and feel that some items are crap. This feels good and works, for me. I’m not a spec bloke, just an average bloke but this item is good 👍

Works well. Keeps the battery on my work boat topped up so it's always ready to go.

Did exactly what I wanted it to.Say no more.

dobry produkt

Bon rapport qualité prix

Funciona bien, ya no lo uso lo vendo por 10€.

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