Solar panel · Boston

88%

Battery

6 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
88%
Day or night
Day
Charging
Charging - very slowly
WiFi
Good
Solar system uptime
173 days
Raspberry Pi uptime
4 days
More details
Charge stage
Boost charge
Battery voltage
13.76 V
Battery current
0.32 A
Battery cutoff voltage
11.2 V
Battery restart voltage
12 V
Power supply
1.26V (normal)
CPU usage
9%
Memory usage
43%
Disk usage
3%
CPU temperature
45°C (normal)
Outdoor temperature
15°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 Oct 16 Oct 15 Oct 14 Oct 13 Oct 12 Oct 11 Oct 10 Oct 9 Oct 8 Oct 7 Oct 6 Oct 5 Oct 4 Oct 3 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% Aug 17 Aug 29 Sep 10 Sep 22 Oct 4 Oct 16