DROK Battery Capacity Monitor, 10-100v Battery Meter, 12v 24v 48v Battery Power Percentage Voltage Fahrenheit Temperature Indicator Gauge

I really like the look and features of this battery meter.As has been commented on before, the gauge of wire is very thin and does feel flimsy. I tried making this better by stripping the wires for an inch or so, then folding the bare wire in half and twisting it together. Next, I tinned the wire ends with solder and then crimped them onto spade terminal connectors. In addition to crimping the wire ends to the terminal connectors, I also soldered them to the connectors to insure stable electrical contact. I crimped the corresponding female connectors to the positive and negative wires behind the dashboard of my golf cart. To strengthen the connections, I applied heat shrink tubing to the wiring on each end and fitted it to snugly abut the terminal connections both male and female.I then enlarged the already existing meter hole to accommodate the dimensions of the new meter. I did this by first cutting out a template using an index card, which I aligned and taped to the dash where the meter will reside. Using the template, I cut the hole using a hack saw blade and did finish trimming with an Exacto knife.Finally, I plugged the spade connectors together - positive to positive and negative to negative. I used more heat shrinkable tubing to completely cover up and protect the point where the male and female spades are connected. This guaranteed the connect would never accidently disconnect.I then programmed the meter to correspond to the type and voltage of my golf cart batteries. However, when I turned on the display, it shows that my brand new (two-day old), fully charged batteries are at 77% of capacity. It should read near 100%. I’ve asked the seller for assistance to resolve the problem. The seller promptly instructed me to use menu item 3 to customize the minimum and maximum voltage of my battery array. I did what they instructed and that resolved the issue.The finished installation looks great and the meter seems to operate perfectly.

I've just gotten to mounting this today, but it still works after a 25 mile test ride on the electric bike over some pretty rough roads, so that seems like a good start! Two things of note. This is TINY! I often misjudge the size of things from the pictures, I really expected this to be about twice as big, so take a moment to look at the specs, and understand how small this is. Also, its not very easy to read in bright day light, especially while bouncing down the road. I was using this to test a new battery on an electric bike, so I really was trying to see my voltage level while moving and accelerating. If I stopped, the battery would recover and throw off the numbers. Anyway, small is good, just harder to read when moving. There are other reviews that mention how to configure this for your type of battery. Mine came with the directions, just be sure to make the adjustments before you mount, you'll need access to the rear of the meter to press the set button. I'm using it with LiFePO4 pack, and after setting it up, it seems to be pretty accurate.

Works as advertised. Easy installation and easy to use.

Was very simple to install. Temp sensor is kind of short, but was able to run it out next to a light switch under the cabinet. I love that it can be turned off to not waste power. No more guessing. The old battery indicator only stated "weak, fair , good charging"

This is an OK buy for the money if you need a battery meter. Nothing sophisticated in what it tells you. It's a digital read-out battery LCD meter, that's all with a temperature probe to tell you how warm the battery gets while charging or discharging. It's just a step above an analog meter that you can buy for five bucks in a hardware store.The problem is that ir requires too much time and effort to set up. You have to program it with the right information in order for it to tell you useful information...whatever that is! It is too time consuming for me to use and apparently too time consuming for the manufacturers to write a decent instruction sheet. The device needs better usability instructions... but it appears that the people who made it are not interested in telling you how to make it useful. This device has two buttons that are not hard to master, (One saves, and one selects the menu items) but it is hard to remember the sequence of their use for saving or displaying information. It does not hold the settings and values that you put into it that drive the numbers you are seeing. I have to keep resetting the voltage levels, the battery cells, the number of batteries in the system, what type of battery is being used... it's too confusing and time consuming to get it to work right. It's unclear to me what the programming values are asking for. I have had this a month now. All I do is push the button and read the voltage and the battery graphic that tells me how much battery charge is left. Beyond that, I would say that it has limited use, and I do not even feel that the information it displays is correct or useful...given the difficulty I had in programming it.

After buying another battery monitor early this week, which I returned in less than 2 hours after trying it, I was happy to get this item. I do wish it was a bit bigger, but quite content with it. It does a good job and only seems to vary by a max of 0.2 vdc as compared to another meter. This is in range with its accuracy. Once set up it works well. If you have limited space in a box and need a battery monitor, this one will work fine. It might not have all the parameters of some monitors that cost $80, but does a nice job for my project. The display is bright and easy to read, and it comes with a temperature sensor already wired into the plug and ready to use.

Complete JUNK!I’m usually good about programming as I have a CIS BA degree! Either I got a broken one as it is not functioning correctly and I can’t find any GOOD INSTRUCTIONS ANYWHERE to determine if it is user error!

easy to install works very well