Technology 01
How Long Will a 150Ah Battery Last With Fans, TV and a Fridge?
Two fans, four bulbs, a TV and a fridge get about 3 hours from a 150Ah tubular battery, not the 3.6 the brochure formula says. Here is the maths and the fixes.
inverter
Electronics 02
What Size Cable for a 2000 W Inverter at 12 V?
A 2000 VA inverter on 12 V draws about 145 A flat out. Voltage drop alone allows 25 to 35 mm² over 1.5 m; Victron's manual asks for 70 mm² and a 300 A fuse. Here is why, with 24 V and 48 V compared.