Anyone know about the COBOX Wattmeter - Power Analyzer?

bostjan · May 13, 2015

I search for Android Wattmeter on the net for my eBike and found wireless Bluetooth COBOX Wattmeter for Android device and it is not so expensive.

http://www.cobox-ebikes.com/290/wireless-bluetooth-cobox-watt-meter-power.html
I wanted to know if anyone has experience with it?

voicecoils · May 13, 2015

I haven't used one but looks to be powered by an Arduino Mini: https://www.sparkfun.com/products/11113

Interesting voltage range of 55v max, that excludes 16S 48v iron phosphate which charges to 58.4v

Cobox says a new version is coming with bigger voltage and current windows. Good idea!

BikeB4Drive · Jan 13, 2016

I'm on my first ebike project and I was wondering if you ever tried this product out? I was eyeing the Mooshimeter by Mooshim but they are still a bit of a new product and nothing like the utility you found in this watt meter.

Samd · Jan 13, 2016

Actually that looks like an Arduino mini butted up next to one of those cheap DC-DC stepdown units. It sure seems to be!
I guess thats the power source for the 'Duino.

Interesting.

DVDRW · Jan 13, 2016

DC-DC ~1$
Arduino ~2$
BT module ~3$

Good find, that 55v is 36 version. 48V version is upto 60V.
Any cheap 24 cell voltage to android device exists?

handbaked · Feb 17, 2016

Now if only the code was available...

handbaked · Feb 22, 2016

bostjan said:
I search for Android Wattmeter on the net for my eBike and found wireless Bluetooth COBOX Wattmeter for Android device and it is not so expensive.
http://www.cobox-ebikes.com/290/wireless-bluetooth-cobox-watt-meter-power.html
I wanted to know if anyone has experience with it?

Anyone have experience of these?

voicecoils said:
I haven't used one but looks to be powered by an Arduino Mini: https://www.sparkfun.com/products/11113

Interesting voltage range of 55v max, that excludes 16S 48v iron phosphate which charges to 58.4v

Cobox says a new version is coming with bigger voltage and current windows. Good idea!

7tronics · Oct 26, 2018

The Speedict.com Neptune line is the closest we could find to the COBOX Wattmeter for some of our educational demos. We have ordered each version COBOX Wattmeter and will post results once we are able to test them.

If the Speedict Neptune can be setup without attaching individual cell monitoring leads, we will test one of them as well.

Best, Mark

7tronics · Oct 28, 2018

Hmm, striking out here!

1) No one has responded to our requests of COBOX-ebikes.com including a PayPal order!

2) the Neptune 15 tech support responded that their device must be the BMS for the pack and won't work unless the cell connections from at least 10 cells are connected

The Cycle Analyst wins again for this application as an EV Wattmeter and battery state of charge meter.

Best, Mark

7tronics · Oct 30, 2018

After several more attempts to contact the people at cobox-ebikes.com, we have given up. The PayPal order was never received after 5 days, so we cancelled that as well. Looked like a nice product, sorry the e-mail and PayPal order can't get a response on the promising COBOX Wattmeter.

As mentioned above, back to a Cycle Analyst with cable connection.

Best, Mark

bobmutch · Oct 30, 2018

7tronics said:
As mentioned above, back to a Cycle Analyst with cable connection.

You could checkout Vlads PV Dashboard, they have a $119 BT board with a CA3 JST 6pin and you can have the dashboard. I think this app will end up connecting to Olive Leaf 300A 8S-24S or 16S-32S BT miniScreen BMS.

https://www.youtube.com/watch?v=vMterv6BGNY

Anyone know about the COBOX Wattmeter - Power Analyzer?

bostjan

1 µW

voicecoils

1 MW

BikeB4Drive

1 µW

Samd

10 MW

DVDRW

100 W

handbaked

100 W

handbaked

100 W

7tronics

100 mW

7tronics

100 mW

7tronics

100 mW

bobmutch

100 W

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