Checking New Battery

peter021072

Hi there
I bought a new battery for my laptop last week, it's the 2nd or 3rd replacement over 8 years. Unfortunately, he capacity of the new battery doesn't seem to be much different than the old one on the same settings.  
After searching on the net, I managed to find this site which shows how to produce a battery report, but I can't make much sense of the results, can anyone help? 
https://www.bing.com/videos/search?q=battery+test+laptop&docid=608052508594210400&mid=61BB470AB06511B0A08561BB470AB06511B0A085&view=detail&FORM=VIRE
I've only copied a small part of it here.

Battery report

COMPUTER NAME	DESKTOP-MSLQGN6
SYSTEM PRODUCT NAME	TOSHIBA Satellite C660
BIOS	1.50 02/14/11
OS BUILD	18362.1.amd64fre.19h1_release.190318-1202
PLATFORM ROLE	Mobile
CONNECTED STANDBY	Not supported
REPORT TIME	2020-07-0111:55:39

Installed batteries

Information about each currently installed battery

	BATTERY 1
NAME	PA3817U-1BRS
MANUFACTURER	COMPAL
SERIAL NUMBER	41167
CHEMISTRY	Li-I
DESIGN CAPACITY	47,520 mWh
FULL CHARGE CAPACITY	47,520 mWh

START TIME	STATE	SOURCE	CAPACITY REMAINING
2020-06-2812:53:00	Active	AC	100 %	47,520 mWh
13:49:02	Suspended		100 %	47,520 mWh
13:49:38	Active	AC	100 %	47,520 mWh
18:14:59	Suspended		100 %	47,520 mWh
19:57:10	Active	AC	100 %	47,520 mWh
20:47:56	Active	Battery	60 %	28,296 mWh
20:47:56	Suspended		60 %	28,296 mWh
20:48:31	Active	Battery	59 %	28,091 mWh
21:43:44	Suspended		29 %	13,619 mWh
21:44:20	Active	Battery	28 %	13,446 mWh
22:04:03	Suspended		19 %	9,202 mWh
22:49:37	Active	Battery	18 %	8,770 mWh
22:55:29	Active	AC	14 %	6,750 mWh
2020-06-2903:57:01	Suspended		100 %	47,520 mWh
06:28:00	Active	AC	100 %	47,520 mWh
11:18:39	Active	Battery	61 %	29,030 mWh
11:18:42	Suspended		61 %	29,030 mWh
11:19:17	Active	Battery	60 %	28,739 mWh
11:50:39	Suspended		44 %	21,082 mWh
12:58:31	Active	Battery	44 %	20,920 mWh
12:58:31	Active	AC	44 %	20,920 mWh
2020-06-3007:29:39	Suspended		100 %	47,520 mWh
07:30:15	Active	AC	100 %	47,520 mWh
2020-07-0110:46:05	Suspended		100 %	47,520 mWh
10:46:42	Active	AC	100 %	47,520 mWh
11:07:18	Active	Battery	62 %	29,430 mWh
11:07:18	Suspended		62 %	29,430 mWh
11:07:53	Active	Battery	62 %	29,268 mWh
11:55:33	Report generated	Battery	33 %	15,844 mWh

START TIME	STATE	DURATION	ENERGY DRAINED
2020-06-2820:47:56	Active	0:00:00	-	-
20:48:31	Active	0:55:13	30 %	14,472 mWh
21:44:20	Active	0:19:42	9 %	4,244 mWh
22:49:37	Active	0:05:51	4 %	2,020 mWh
11:18:39	Active	0:00:02	-	-
11:19:17	Active	0:31:21	16 %	7,657 mWh
12:58:31	Active	0:00:00	-	-
11:07:18	Active	0:00:00	-	-
11:07:53	Active	0:47:39	28 %	13,424 mWh

John_Gray

if you don't follow those results from powercfg, you might find NirSoft's BatteryInfoView more intelligible... (Download for the utility is near the bottom of the webpage.)

forgotmyname

Hours on AC when at 100% = bad for the battery over time. Degrades faster when full charged. 80% will give a
much longer life.

Suspend and not shutdown? Suspend will use some battery power where a full shutdown will not.

Battery is only 2.5Ah?  thats not a lot.

peter021072

John_Gray said:

if you don't follow those results from powercfg, you might find NirSoft's BatteryInfoView more intelligible... (Download for the utility is near the bottom of the webpage.)

  I ran a youtube video continuously without any other processes from full charge, and it lasted 1 hr 20 m. This was on power saving mode so the illumination dropped halfway through.  I might try the same with my old battery.

peter021072

Tried the old battery whilst having the same Youtube video on, and it lasts 20 minutes longer!  It's the same make and type, so there's definitely something wrong with the new one. If only I'd kept the packaging to send back to Amazon!