⚡️ DROK 0-90V 100A DC Ammeter Voltmeter: Battery Capacity Amp-Hour Watt-Hour Power Time Multimeter with LCD Display and Hall Sensor Review

I use a meter to read the capacity in Ah and Wh of Valence U27-12 batteries. Batteries have an internal voltage reading that doesn't match the DROK meter, which resets Ah and Wh. Also with a multimeter I get the same results with DROK off.

This device will not accept a discharge of 1A or less. I am checking if a different (higher) amperage will work. For my application this will never work as I will be running smaller loads for a long time and this device will always show 100% battery status.

Very disappointed with this meter. It's supposed to have a current accuracy of 100mA, but I have to draw more than an amp through the sensor for it to register anything at all. Drawing half an amp, it will happily sit there displaying zero current until your battery is zero. I've had other Drok products before that were great but this one seems rubbish :(

Anyone expecting this device to be accurate at low current should read the specifications. Current accuracy is specified as +/- 3% AND +/- 0.5 amps. This means that a current reading of 1 amp can actually be between 0.5 and 1.5 amps. I'm using it in a circuit where the maximum current is 10 amps, so I put the wire carrying the battery current through the hall sensor 10 times. Now I have to divide the readings for amps, amp-hours, watts and watt-hours by 10, but the low current accuracy is 10…

Well I bought one to see if it would work for the TWO projects I have in mind before abandoning Lucre for the second unit. Reading the spec sheet out of the box the potential looks amazing EXCEPT for the cable length between the display and the sensor assembly. One project was for a voltammeter in a car, the other was a solar panel battery charge monitor in addition to the panel controller information. The pinhead engineer, or rather the dung bean counter, who pointed out the 8-inch and 20-inch

I have two of these. Yes, the instructions are a bit difficult, but how good is it to write instructions in another language? The blocks are small and tricky to build, but once you do it you'll love it. I bought my first one a few years ago and it hasn't let me down yet. It was used to control the input/output voltage and current from a cheap Harbor Freight charge controller. I have since bought another one to use with another solar project. I've also used it in conjunction with my large array,

Exactly 2 weeks have passed since using the monitor. It is very accurate when it comes to measuring voltage and current, you can even calibrate the meter for more accuracy. 'OUT' controls a 12V output that can be connected to a 12V relay or just a light source. You can set the output to turn on/off when the selected value reaches a certain value. If it is disabled, you must manually re-enable the output. I have to push the buttons hard to get an answer, that suits me. I love Drok products, I…

The first unit was defective, after a few minutes the display starts to fail, then you have to unplug it for 30 minutes to get it looking good again. Revain quickly sent me a replacement that works fine. Is power coming in or out of the battery? It's hard to tell because there's only a tiny arrow pointing left or right. The manual says it changes color but I promise you it doesn't change color. Also, I have a 3000 amp hour battery and trying to adjust the total amp hour capacity one amp hour at