Summary: Below is a history of the four main battery types we discuss
- Lead Acid: The oldest rechargeable battery, invented in 1859
- NiCd: Invented in 1899 and was immediately viewed as superior to Lead Acid batteries
- NiMH: First discussed in the 1970s and commercially developed for small applications in 1989.
- LithIon: First proposed in the 1970s and commercially developed 1991, but have been further refined until recent years.