Coulomb counting Ah Wattmeter

J

john61ct

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Dec 18, 2018
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Looking for purchase links for this, reco by @methods :

https://youtu.be/YI3m5R6i3OU

a non-Amazon source would be great, don't mind if slow, may want to buy in bulk

a two-way version even better

Also a link to the crap one he mentions so as to know not to bother testing it, would be appreciated.

If there are other inexpensive units you want to recommend, based on personal experience, verifying against known good instruments

that would be fine, but please state that your post is not discussing these specific OP models
 
Hillhater said:
It seems to be the “ Peacefair PZEM- 051” which is readily available on Ebay , Alexpress , etc for $10-$20 each.
A quick search gave many sources.
Click to expand...
Perfect, thanks much
 
This is the one that I bought. I got the 50a version.

US $25.79 25％ Off | TK15 Professional Precision Battery Capacity Tester 80V 50A/100A/350A for Portable Equipment E-bike/Balance Car/Cleaning Machine
https://a.aliexpress.com/_mMDo0WE

I went with this one, because the shunt is much cleaner. Similar wiring to the cycle analyst. I didn’t want to run 12 gauge wire from my battery, to my handlebars, then back down.
 
Note the TK15 while widely recommended is not the answer to the OP question

a different product entirely, no relation to the unit that methods mentioned
 
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