Flooded Lead Acid, AGM, and Gel Battery Types

A Flooded Lead-acid battery is most commonly used battery made up of lead plates and

Batteries in Series and Parallel for Battery Packs (1S, 3S, 4S, 3S2P)

Series and Parallel configurations are popular in the lithium battery packs.

What is Ah and Wh in Batteries (Amp-Hour, Watt-Hour, C-Ratings)?

Whenever you are using batteries, you might have seen it mentioned as mAh, Ah, or