Solar panel · Boston

82%

Battery

3 min ago

I have a solar-powered website at solar.dri.es (mirror). It runs on a Raspberry Pi with a solar panel on our roof deck.

Every 10 minutes, the Raspberry Pi updates this status page. This page is hosted separately, so if my solar-powered website goes offline due to an extended lack of sunlight, cold preventing the battery from recharging, or a system crash, you should be able to see that here.

Battery
82%
Day or night
Day
Charging
Charging - very slowly
WiFi
Good
Solar system uptime
132 days
Raspberry Pi uptime
1 days
More details
Charge stage
Float charge
Battery voltage
13.25 V
Battery current
0.21 A
Battery cutoff voltage
11.2 V
Battery restart voltage
12 V
Power supply
1.26V (normal)
CPU usage
9%
Memory usage
41%
Disk usage
3%
CPU temperature
43°C (normal)
Outdoor temperature
13°C

Hourly battery charge

Each row is a day and each square is an hour. The deeper the red, the lower the charge; grey means the Raspberry Pi was offline.

LowFullOffline
Battery capacity by hour Sep 5 Sep 4 Sep 3 Sep 2 Sep 1 Aug 31 Aug 30 Aug 29 Aug 28 Aug 27 Aug 26 Aug 25 Aug 24 Aug 23 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

Daily battery levels

Each day's highest and lowest charge. It helps track trends and the risk of the Raspberry Pi shutting down from insufficient sunlight or extreme cold.

Daily highDaily lowDanger zone
Battery high and low by day 0% 20% 40% 60% 80% 100% Jul 7 Jul 19 Jul 31 Aug 12 Aug 24 Sep 5