Connecting batteries into series or parallel doesn't have to be difficult, it is in fact quite simple. It is possible for 2 x 12 Volt 100Ah batteries to be connected in different ways
To put it simply, batteries come in two basic types, rechargeable and single-use. A single use battery can only cycle once, meaning once the power has been drained it needs to be replaced, these are types such as alkaline, zinc and lithium. Rechargeable batteries, once drained, can be charged and used again. These are types such as