500A Battery Monitor with Alarm, Capacity and Voltage Indicator, Compatible with LiFePO4, Lithium-ion, Lead Acid Battery in RV and Solar System

With some erratic charging, high temp use and periods of long storage/inactivity this unit has retained the battery level with great accuracy. The battery I have it monitoring (Eco Worthy 100ah) has its own BMS via Bluetooth, but the reason for this shunt was to get an easy to read display but also more accurate low wattage reading - the built in stops reading below 15W. Great product, easy to install and calibrate and consistent in it's readouts. Recommend.

Got a few of these for different people. Great product for the price.

Good quality meter, works well and is quite accurate. Easy to install with no fuss. If your running lifepo4 on your solar then this unit is a must have, highly recommend 👍🏻

Used now for few years and saves logging onto MPPT to check levels. One tip is to every now and again disconnect battery and recharge to full (check by relevant resting voltage) then reset this item by holding arrow up to set at 100%

It does the job sort of It's a lot of faf to set up you ha e to discharge the battery bank then fully charged it before you get any meaningful readings out of it Now that's great on a small system but I am running 800ah worth of battery that's a long time to drain and recharge for something that should work on it of the box or at least me able to make and educated guess based on the data you input I will keep it for now as it is showing the current draw/input but once I have sorted a few other bits in the build it will be replaced

I bought this as an upgrade to a very very cheap one which worked but not that well. This one is quite a reasonable price too compared to other solar specific ones which are more than twice the price. The main improvement with this monitor is that it's much simpler and clearer to read the screen than the last one and seems to keep a reasonably accurate readout of the current battery state of charge in both Ah and % used (I cross checked it against another old AC plug in device I had). Note that I have my monitor in both the charge and discharge loop so it gracefully counts up and down in both modes. The extra long cable between shunt and monitor is a nice touch if you want the monitor remote from the battery bank. There is some small room for improvement in the manual/setup instructions: In the manual it suggests setting the max voltage to about 12.6v, this doesn't work, you need to set it to around 14-14.4 volts, the charging voltage. If you don't do that it refuses to count down from max capacity. I set the min at about 11.6v but my inverter automatically cuts out if the batteries get too low anyway. This may need further adjustment on the monitor if I ever run it low. It's not clear whether you should set the Ah to the battery bank nominal or to the max useable. It's ultimately your choice. I set it to battery bank nominal because my inverter has an emergency 20% cut-off and the battery bank only cycles 2-3 times/year so deep discharges are not going to significantly reduce the lifetime. On my installation the batteries are kept on trickle charge all the time. This trickles a few watts into the battery bank every half hour and kept waking the display up to bright mode, which was annoying. If you read the manual very carefully this can be switched to dark (but not blank) screen all the time. It was a bit tricky to find but obvious when I found it. You may need to cycle the battery bank a couple of times to get a true 'full' value when you set the Ah on this monitor. The first time I set it, discharged to 50% then re-charged it recharged for about another hour past 100% before stopping. Not exactly surprising given the variability of my lead acids. Because this goes up to 500A you'll need smaller bolts for smaller current wire ends on 40-100A setups, luckily I had some to hand. Also I found that for mounting it a 2x 240v AC Blank plate (with square hole cut in) and 30mm deep back box worked well. Pretty good though, would recommend.

Not that actually and little complicated

Had trouble with our batteries on the boat. This was a godsend. So reassuring to be able to see what power you have and what you’re charging at. Easy to fit and has way more features than we need.

It takes 249w just for the screen!!

Perfecta medicion a distancia de tu batería hasta 500Ah...mide intensidad de carga y descarga...voltaje y estado de la bateria continuo...pantalla iluminada variable en intensidad y alarma de limite de descarga.A mi me sirve para controlar desde casa el estado del banco de baterias que está a 50 metros de distancia mediante cable protegido de 4 pares de hilos.Tengo uno desde hace mas de un año y he instalado otro igual para otra batería...funcionan los dos a la perfección con el mismo cable de 4 pares, 2 pares para cada monitor y la masa común al blindaje del cable.

Fonctionnement simple, réglages faciles, très bon produit. Par contre la pose en saillie n'est pas possible car le cadre est introuvable, je l'ai fait imprimer en 3D pour 11€ a coté de chez moi. .

Super apparaatje om je accu te checken. Wij moeten geen draadloze bluetooth troep in de camper, we gaan juist weg om de natuur in te gaan en die straling zoveel mogelijk even te ontvluchten. Dit apparaatje sluit je simpel met een kabeltje aan op je (smart) accu en je ziet meteen hoe vol de accu is. Fijn ding!

Ben fatto e con le giuste indicazioni anche molto preciso, si configura facilmente anche se le istruzioni non sono in italiano. Ottimo packaging