SolaMr MPPT 60A Solar Charge Controller 12V/24V/48V Intelligent Identification Buck Solar Charge Controller Solar Panel Battery Regulator with LCD Display Temp Sensor RS485 Interface - 60A

Solidly made and well packed device.I contacted them about other items mentioned in the charger paperwork, and they replied instantly.Great Customer service and great chargerJust be aware that the output from battery to load is less than the panel input20 A unit can only supply 15 Amp on load side

Didn't last long

It charges my batteries, I have it running on 48v with 20x 100w solar panels and 4 12v lead acid batteries wired in series, the case is metal and feels very sturdy, for some reason mine did not come with any instructions but that's not a massive problem as I found them online.

Ok

No English instructions, not possible to connect to view on PC dispute what they say and emailed firmware’s from them… not the best but does charge the battery’s more simple easy to use systems on the market for similar price but I would say I wish I paid a little more for a better unit.

I have to say that the reason for the 5 star review is because of the seller themselves, yes the product is great but what makes this purchase better is the fact that when I had any problems the seller was patient and resilient in helping me resolve the issue. A genuine good guy. Highly recommend this to anyone.

Point to note at the start:I am a trained domestic and auto electrician and a hobbyist electronics nut (full Amateur Radio License holder) so electricity and electronics don't faze me, however I have only just started dabbling in solar...This is a heavy and, seemingly, robust unit was easy to fit (it was replacing a PWM controller in my camper so wiring was a straight replacement) but from the start it seemed to have a slight fault but I could find no help on the 'problem' and, being new to solar, I thought maybe it was proper operation.On connecting power all was fine, display lit up, battery voltage displayed etc. Connected solar and charging seemed to start really slowly, MPPT flashing away on the display for some seconds before the yellow 'charging' light came on.The display showed varying power into the battery, which was confirmed by my shunt meter. As I looked at the shunt meter the current dropped to 0. Looking at the controller the display was totally blank!As I wondered what was wrong, checked fuses etc. the controller came back to life and, after a few seconds of flashing MPPT the controller started charging again.A few more stops and starts like that, nothing being touched I was just sat looking and thinking that the behaviour couldn't be right, could it? I pulled the solar input fuse and the battery power fuse (yes in that order, I had read the warnings in the manual) and rechecked my wire connections. All was OK.Reinstalled fuses and watched the same, power up, think about it, charge, all off. I noticed that the 'all off' condition seemed to be at a random time, then realised that slight movement of the van seemed to coincide with the 'all off'.Aha! Looks like a dodgy solder joint. Fuses out, wires disconnected, controller removed from van and on the bench, soldering iron at the ready.Disassembly was easy (for me) and, on examination, the solder joints on the main board where the battery power connected were terrible, dry and crystalline looking. I reflowed all the joints on the wire connections and reassembled the unit, refitted and connected battery, all lit up fine so solar fuse went back in.Again several seconds of MPPT flashing before the charge light lit.It stayed lit, battery was charging fine. All good?I thought so, but I noticed a few days later that the controller (which my shunt meter reported was drawing 109mA when no solar power was produced) was taking 120mA, it was bright sunshine outside so charge should be happening. I looked at the controller and the charge light was on but the charge current was 0! I pulled the solar fuse, let the display settle down and charge light go out. Replaced fuse and everything was fine again.This happened randomly but several times a day. Also the charge would suddenly stop then a few seconds of MPPT flashing before charging again. Even with no clouds, shading etc it would just stop charging and restart for no reason.I have replaced this unit with one from another manufacturer (usually more expensive but was new and on offer) that sees light, starts charging within 1 second and doesn't drop out or lock up.In summaryThis seems to be a cheaply made, non quality checked device. I cannot recommend this unit as the one I had was poorly made. Look elsewhere at higher quality branded units.FOOTNOTE:I have lowered the rating to just 2 stars following a while using the new controller with no dropping out, no locking up and charging as soon as it sees light. Obviously this unit is a poor design coupled with poor quality control.

I like the controller but the instruction I have found hard to understand I'm running a 24v system and when it hits 25v the controller wies out completely how do I get hold of the seller to this unit