I bought this exact same 150A meter to measure how much power my e-skateboard pulls when going up steep hills. At low voltages (12v) the voltage reading is spot on. When I plug it into my full 42v lipo skateboard battery it reads 37v. Verified with multimeter that the battery was full @ 42v. So at higher voltages the readings are unreliable. At least mine is. There are no potentiometers inside to do any adjustments.
I still use it to track how many watts my skateboard can pull, but I think there's a bunch of clones of these things and each one is a little bit different
Good video. I'm thinking about building my own DIY jump starter/power bank and was looking for an all-in-one power monitoring system. This device came across while scrolling Amazon.
i bought several the 200 amp version about a year ago. since then i have learned a bit about power/amps/awg and it just dawned on me how tiny the cable is yet they claim 200 amps. i assumed they were 10 gauge, which would handle 30 amps, but i admit the wires and unit gets a little warm about 28 amps, so maybe they are 12 like you said in the video. the 2 gauge wires i uses to connect a 5kw battery bank to my inverter at 12v gets very warm at 150amps and i see a voltage drop down to 11.5v lol. anyways i thought these were awesome little meters but now i am scratching my head a bit.
@@stevenc22 and today i finally had good sun all day with my new solar array and noticed some more bs. these meters roll over to zero on the watt hours and the amp hours, but i dont know for sure at what point. i suspect watt hours rolls over to zero every 1000 watt hours and maybe amp hours every 100ah. that really has been throwing me off this last week.
100/130/150 Amp versions have 12 AWG cables, idk about the 200A version I've just ordered, but cables I can replace, I wonder what the shunt rating on it will be
Can you put this on the battery bank instead to just read battery levels Instead of using it on the solar panels? And how would I do that? Most people seem to want to put this on the solar panels... but it seems like the battery bank is higher expense and more to worry about. Or maybe there's even a way to keep it off both but just temporary plug it to each and various batteries for a few seconds to test individual batteries?
Yes you can plug it to the battery bank. There are also very cheap voltage meters you can use to monitor the battery bank. I like to use a ISDT battgo to monitor my meter
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I'm sure you're trying to be helpful here, but a person with more than one watch is never sure what time it is! 🙂
I bought this exact same 150A meter to measure how much power my e-skateboard pulls when going up steep hills. At low voltages (12v) the voltage reading is spot on. When I plug it into my full 42v lipo skateboard battery it reads 37v. Verified with multimeter that the battery was full @ 42v. So at higher voltages the readings are unreliable. At least mine is. There are no potentiometers inside to do any adjustments.
That sucks! Hopefully the amp draw is more accurate
That's interesting.
Did you try it on current or just do away with it?
I still use it to track how many watts my skateboard can pull, but I think there's a bunch of clones of these things and each one is a little bit different
Good video. I'm thinking about building my own DIY jump starter/power bank and was looking for an all-in-one power monitoring system. This device came across while scrolling Amazon.
even 10 g wire is pushing it however the intended loads maybe the 150 to 200 is a peak for split second say for rc use or even ebike use
Good to know.
i bought several the 200 amp version about a year ago. since then i have learned a bit about power/amps/awg and it just dawned on me how tiny the cable is yet they claim 200 amps. i assumed they were 10 gauge, which would handle 30 amps, but i admit the wires and unit gets a little warm about 28 amps, so maybe they are 12 like you said in the video. the 2 gauge wires i uses to connect a 5kw battery bank to my inverter at 12v gets very warm at 150amps and i see a voltage drop down to 11.5v lol. anyways i thought these were awesome little meters but now i am scratching my head a bit.
Agreed. Meter can probably handle 100+ amps for short periods of time but not continuous.
@@stevenc22 and today i finally had good sun all day with my new solar array and noticed some more bs. these meters roll over to zero on the watt hours and the amp hours, but i dont know for sure at what point. i suspect watt hours rolls over to zero every 1000 watt hours and maybe amp hours every 100ah. that really has been throwing me off this last week.
100/130/150 Amp versions have 12 AWG cables, idk about the 200A version I've just ordered, but cables I can replace, I wonder what the shunt rating on it will be
@@jasonbrown467 some versions get stuck at 9999 or 0 once they reach the top limit
@@stevenc22 it wont burn i guess but good luck maxing it out with those tiny cables!!! .,.
Is there any possibility to change the cable for higher ampere measurement
very good informative....
Is there a version that works for 200 v but max of 20 amps?
i got a 200a one for my ebike......shame the only go upto 60v my ebike is 72v.
magic smoke!!!
That sucks!
maybe 2 watts difference is the consumtion of the meter.. to good to be truth but possible
What max voltage that it can work with?
Is this able to measure the Battery Capacity?
Not directly but you can attach a empty battery and charge it and the meter will count AH, so indirectly it can
Need to zero out the amp meter each time before use.
Can you put this on the battery bank instead to just read battery levels Instead of using it on the solar panels? And how would I do that?
Most people seem to want to put this on the solar panels... but it seems like the battery bank is higher expense and more to worry about.
Or maybe there's even a way to keep it off both but just temporary plug it to each and various batteries for a few seconds to test individual batteries?
Yes you can plug it to the battery bank. There are also very cheap voltage meters you can use to monitor the battery bank. I like to use a ISDT battgo to monitor my meter
usefull if it last more than a week
After approx 60 hours of use, the digits started fading. A real piece-o-junk!
It's not my favorite
Does it also make a high pitched noise? Mine do
Mine doesn't