Wentronic lead battery (Ultracell) 12 V, 7 Ah (Faston 187-4,8mm) (Accessories)
I've been running on battery, a solar light, during the day loaded with a 25 Watt-cell and glowing in the dark over a 1 watt LED for a few hours. The battery is charged via a charge controller with undervoltage protection and now works correctly for