Deep Cycle Battery FAQ
https://www.solar-electric.com/learning-center/deep-cycle-battery-faq.html/
The links below are on this page - you can also just scroll down if you want to read them all.
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What is a Battery?
Types of Batteries
Battery Lifespan
Starting, Marine, or Deep Cycle?
Deep Cycle Battery as a Starting Battery?
What Batteries are made of
Industrial Deep Cycle Batteries (forklift type)
Sealed Batteries
Battery Size Codes
Gel Cells (Gelled Electrolyte) (and why we don't like them)
AGM Batteries (and why we do like them)
Temperature Effects
Cycles vs Lifespan
Amp-Hours - what are they?
Battery Voltages
Battery Charging (Here is where we get into the real meat)
Charge Controllers (for wind/solar)
Mini Factoids - Some small facts about batteries