JLCPCB Prototype for $2(Any Color): https://jlcpcb.com
Testing the PowerOak PS5B including a full charge and discharge test. 12V output tests including speed of over current protection. 5V USB output tests. 230V mains tests including pure sine verification and overload protection tests.
Amazon UK and DE links:
http://www.amazon.co.uk/dp/B07N423HLH?ref=myi_title_dp
http://www.amazon.de/dp/B07D14MN4Y?ref=myi_title_dp
Money Off Code:
Start Date: 04/12/2019 11:00 GMT
End Date: 30/04/2020 23:59 GMT
Tracking ID: PS5B-UK 30 MONEY OFF
Promotion ID: A3MOMMX2YUM6HJ
Claim code: POWEROAK
Testing the PowerOak PS5B including a full charge and discharge test. 12V output tests including speed of over current protection. 5V USB output tests. 230V mains tests including pure sine verification and overload protection tests.
Amazon UK and DE links:
http://www.amazon.co.uk/dp/B07N423HLH?ref=myi_title_dp
http://www.amazon.de/dp/B07D14MN4Y?ref=myi_title_dp
Money Off Code:
Start Date: 04/12/2019 11:00 GMT
End Date: 30/04/2020 23:59 GMT
Tracking ID: PS5B-UK 30 MONEY OFF
Promotion ID: A3MOMMX2YUM6HJ
Claim code: POWEROAK
I was charging it in the car with a universal 12V Notebook Charger. And it shows me an input of 120W. Which is double as fast as with the AC Charger. I wondered… But there was no error code…
What is the DC WHR capacity of this unit?
Thats totally normal to be over 13 volts, but soon drops quick
watch both parts and looks like a nice little thing, oh & i loved your cheeky plug to banana plug setup!!: )
Nope nope nope. According to the Panasonic NCR1860B data sheet, they tested the capacity from fully charged to the end voltage of 2.5V (specified for those cells). The assumption that the cell's being measured discharged to 0V can't be made to all cells, it depends on the manufacture and how they measured it. It's like cable length. Only the cord or also the connectors? ALL the connectors tip to tip or just shell to shell? They don't even specify that. EVER…
The ACTUAL reason why it can't reach full capacity at the output is because of the step up converter losses and because it gets more and more inefficient the lower the battery voltage gets.
send it to bigclivedotcom, he'll figure it out way better with better production value
Wow ! Thank you for doing that, i almost bought that model but the price was kind of high for 400wh, so i decided to learn how to build it one my self from scratch, maybe for some 1.5/2kwh. Can't wait for the rest of the serie, especially the opening ^^
This has nothing to do with discharging to 0V capacity is measured between the working voltages of a cell approx 3v to 4.2v. You'll never get the full capacity form the 230V output due to conversion inefficiency. You would get probably the full capacity or a little bit morethan stated if you directly took the current from the cells without having to step up the voltage.
Need help to understand, have purchased 400 pcs 18650B Panasonic lithium cells. I'll use them in my motor home, but, how do I put the cells together best, have, 3S 11.1V 12.6V 25A
Lithium Battery Protection Board. My question is, 11.1v will it work on 12v which is common in the motor home. The cells are 3.7v and 3400mA, 3 cells are 11.1v, if I take 4 it will be 14.8v, that's a bit to much. How do I fix this with 25A Protection Board with max 12.6v. How will the cell packages be composed? Hope you can help me. 😶
nice bit of kit
Come on sun I'm sure I saw you the other day
the battery capacity is not measured to 0 volts. It's measured to minimum allowed voltage. Even if you wanted to drop it to zero there wouldn't be much of a difference. The main reason is that mains DC-AC converter it not really that efficient. If you measure with a 12V headlight bulb you'll get better figure. You can use those RC model power meters. Also if you have ideal 100% efficient power adapter and 100%efficient charging circuit it'll still take more energy to charge the batteries than they'll give while discharging . That's because Li-ion charging is about 80-90% efficient (I guess the rest is lost as heat)
Gonk
You'll need to laminate the error codes print out and mount to the front of the unit.