Solar Panel (Vintage China,’80?) SM250-12V, 200 Ma 16V Max, 23.8 x 29.2 x 1.7 cm

Vintage low output solar charger kit (probably from the 1980’s), simple board in a metal picture frame. 16 Volt 250 Ma. I checked it with a multimeter & it does put out variable voltage (depending on amount of sun). I assume it would be great for low voltage requirements, however there are no regulators other than diodes. Take a chance for a bit of technological history.

BATTERY TENDER 022-0165-DL-WH Battery Charger,12VDC,1.25A 10W828

Battery Charger, Charger Style Mounted, For Use With Battery Type AGM, Lead Acid, Wet Cell, Automatic/Manual Automatic, For Battery Voltage 12 V DC, Charging Current @ Voltage 1.25 A @ 12V, Maintaining Current @ Voltage 1.25 A @ 12V, Cable Length 54 in, Cable Wire Gauge 18 AWG, Charge Type Smart, Charger Function Charging, Maintaining, Connector Type Alligator Clip, Quick Disconnect to Ring, Housing Material Plastic, Includes Alligator Clips, Quick Disconnect Rings, Includes Test Feature Yes.