ECO-WORTHY 200A Battery Monitor, Easy DIY with Hall Sensor, 12V/24V/36V/48V Li-ion/LiFePO4/AGM/Gel Battery Meter for Golf Cart/RV/Solar System

This is a handy device to monitor the status of battery or array of batteries. I have tested on 24 battery system of the solar panel system. The connection I had for testing: I used System Application diagram, which is the third sample connection shown in the Product description. After I connected I watching the device for about two hours to find it didn't work I turned around the sensor and changed the direction of the current direction. The diagram shows the connector on the sensor that made me an error in connection. The sensor without connector shown is the correct sensor direction. After changing the current direction, The display shows the battery status diagram correctly. At the evening when the battery was exhausted most, I pushed down arrow button for 3 seconds, and let it get fully charged next day. This is a period and process for the device in learning what the status of the battery it is working on: like how much current for how long will it supply. After the battery was fully charged next day after noon,the device provides fairly accurate information like Voltage, currents in and out (+/-) the power it holds.One time, My device displayed the following: 84% 30.4AH, 2.61V -1.2A 31.3W I interpreted this: The current is going out and it is losing 31.3W. My comment is it also should show "-" ; -31.3W. It dose not show how much power the battery holds when the current flows out. You need to calculate.Overall, I recommend to use this device to monitor the status of battery. The only drawback is the initial learning time we have to allow.

The readout is nice and I like how you can turn the backlight on and off. However the backplate for the display comes off pretty easy. If your charging or discharging current is less than 0.5 amps the sensor will read zero for watts and current. Furthermore the positive and negative wires are very thin but the sensor wires are wrapped in a plastic shielding. With that said only time will tell how long the unit will last.

This did its job, no issues, still have it

The media could not be loaded. Install was basic and straight forward. Unit appears to know when the battery is full, however the current shown passing through the sensor while it's charging does not match the current shown on the charger itself.Also, the total amp hours drop if the wires going to the display are wiggled at all. Wiggling the wires tricks they display into thinking there's current draw through the sensor, which affects how much charge the display thinks is left in the battery.So, I will be contacting Eco-Worthy and asking if this is normal or asking for a new unit.

Originally I gave this 5 stars.However, it failed after a few months. My older DROK was cheaper and still works great. I'll get another DROK to replace thisOld review below---I have a few different battery monitors, and have been using this Eco-worthy branded unit for a few days.The quality of this unit seems good. Importantly, this is as easy to setup as any universal battery monitor you'll find:A) long wires with pre-attached ring terminals means no splicing or crimpingB) there is no need to know your battery specs if you use the "battery full/battery empty" setup method, which seems unique to this monitorC) the included manual is more comprehensive vs the others I've purchasedThe display focuses on how full the battery bank is, and includes a unique "battery %"in large font. This makes the Eco-worthy monitor ideal for those not wanting to work in volts/amps/watts.A few cons:While the display is higher resolution than similar monitors, the bezel is wider and this the Eco-worthy display is slightly smaller. Also, I prefer a white display vs green.Overall, if you're looking for the simplest install and don't want to worry about converting volts/amps/watts then this a great choice.***EditI've had this for over a week and I've come to enjoy seeing the data in "battery % full" and even the timer function.The display, though, is harder to read that other monitors. There is a thin plastic over the display that somewhat distorts.See pics where I mounted the eco monitor (green) and another brand in a project box.The white monitor does not have a % full display, but does have an "accumulated energy" monitor, so I use that to monitor the panels and know how much electric I've produced

This is a wonderful monitor for the price. I Installed this monitor for my LiFePO4 RV batteries.I did not have the opportunity to do a complete discharge cycle so did the following.When battery was full, I set setting 11 to full capacity of 200AH.I also set setting 12, Full capacity voltage, to 14.1V (or higher depending on your full charge voltage while charging). This is important because it will automatically reset to 100% when battery reaches this voltage. This helps keep monitor in sync with your battery. Make sure the voltage monitor leads are connected directly to battery or close as possible.After that, the monitor accurately tracked my battery capacity. It indicates amps in and out, voltage, remaining percent capacity and time to full charge/discharge.I highly recommend it.

I purchased this battery monitor for my 48V battery setup, but it’s been far from accurate, even after following the manual’s configuration instructions. After a few months, the settings reset, and I could no longer save any configurations, rendering the device useless.

Using for trolling motor LiFePO4 100Ah battery. Works perfectly. Very easy to install, and one you get the hang of the setup following the manual, you'll fly through it.A great feature is that it saves settings. I have a power switch on my battery box and even if I leave it off for a month it still saves the settings. That is GREAT!