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2023 Jan 13
1
battery.voltage Powercom Macan MRT-3000
...EX : 1502 (Low : 15 / High : 02)
? Battery one cell voltage : [High + (Low/100)] : 2.21
? Battery voltage : 2.21 * 6 * 6 = 79.56 Vol (1 package with 6 cells / MRT has 6 packages)
Best regards
Sandy Chang, Powercom Taiwan HQ
-----Original Message-----
From: Alex Rydzewski [mailto:arydzewski at elyland.net]
Sent: Thursday, January 12, 2023 5:47 PM
To:pcm.eu at upspowercom.com
Subject: MRT-3000 USB battery.voltage
Hello!
I have the MRT-3000 UPS and try to get real battery voltage through USB.
USB protocol reference has specify for battery.voltage:
report id | Usage | Usage Name | Data Ac...
2023 Jan 13
1
battery.voltage Powercom Macan MRT-3000
That makes sense to me. The field needs to be split into bytes. The
low byte is the integer part of voltags, and the high part is units of
10 mV. And this is per cell.
Probably the unit is measuring the total and then dividing by 36. But
volts per cell will have the same interpretation for varying cell
counts, so it's a nice representation.
2023 Jan 13
1
battery.voltage Powercom Macan MRT-3000
...ut
> volts per cell will have the same interpretation for varying cell
> counts, so it's a nice representation.
--
? ?????????? ???????????, ????????? ??????????? |With best regards, Mr. Alexander Rydzewski, |? ?????????? ???????????, ????????? ??????????
????????? ?? ????????? ???????, Elyland ltd. |System and Network Engineer at Elyland ltd. |????????? ? ??????? ???????, Elyland ltd.