Jim Bruce

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You can run most anything on batteries. Just need to know how much power is needed and match it with amp-hours.

START WITH

THE BASICS

FRIDGES ARE TRICKY ...

Like all appliances with compressors inside fridges have motors which start and stop. Motors have surge current when starting which pulls 3 times more than normal.

Let's Get Into It

BEST TO TAKE AN AVERAGE

The average refrigerator uses about 350kWh per year.

GET READY FOR THIS ...

A 10 year old fridge will probably take twice as much power as a new one!

CAR BATTERIES ARE FOR CARS

Car batteries are designed not to be deeply discharged, or they'll be ruined. Discharge shouldn't be more than 15% & recharged quickly.

Lithium Batteries

A 100Ah deep-cycle lead-acid battery will run the average fridge for about 14 hours. Remember that only 50% discharge is recommended, so 50Ah will be used.

FRIDGE BATTERY TAKEAWAYS.

ONLY USE DEEP-CYCLE BATTERIES

RECOMMENDED DISCHARGE RATE IS 50%

100Ah  BATTERY RUNS FRDIGE FOR  14 HRS (JUST 50% AVAILABLE)

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