Wattmeter for our Electric Boards

[okp]

Hey,

I am using and boarding a Wattmeter on my deck basically to measure my consumed mAH. I don't care about all the other indications of the LCD. Only mAH (and maybe voltage)

Is there a way to get a device LCD that display ONLY the mAH consumed ? The actual wattmeters are also bulky (GTPower, Turnigy or others) (120A max)

Any clues on this ?

Thanks !

 

[sl33py]

I know we've had a good discussion on a "Fuel Gauge" display. Found one on ebay that was inexpensive ($6'ish), and after some fiddling it seems to work OK. Shows a battery icon w/ about 7-8 steps between full and empty, can also show current voltage, but not mAh consumed.

I have the same GTPower and Turnigy ones - i like the additional info, especially lowest voltage (make sure i don't over-draw the batteries) as once it rests and you check it will be higher after a minute or two. Not critical, but helpful info.

I did take apart one watt meter -not sure how i can make it much smaller...

 

[kimboviper]

if you leave it plugged in during a ride....how much does it consume of your battery?

 

[okp]

already here : https://endless-sphere.com/forums/viewtopic.php?f=35&t=71536

 

[sl33py]

sorry okp - i've done some digging and can't find a mAh consumed display only. The closest is the watt meter which scrolls through it as you already know.

Why is mAh more important than remaining voltage or even % remaining of battery to you? Is the size of your watt meter your biggest frustration?

 

[Gregory]

If you want small, the Eagle Tree logger is tiny and has been around for years. The display is configurable. And there are accessories for it.

 

[Pedrodemio]

okp, are you using VESC?

It counts mAh (and lots of other useful information), its just a matter of extracting this data via CAN bus, i plan to do something like this as soon i get mine, using arduino and some form of display, led's, lcd or a oled on the remote

if you know the real capacity of the batteries is just a matter of mapping to a value from 0 to 100%

 

[torqueboards]

The eagle tree logger is nice. I have one for testing. The LCD is quite small and can easily be mounted. A lot smaller than the typical watt meters.

 

[okp]

thanks, I already got a eaglytree v5 heavy duty with the LCD panel but it's not as tiny because you have consider that the panel does not work standalone.

yes, I am using two VESCs connected by CANBUS, but still assembling the conf