Batteries used in solar lights ?

Batteries used in solar lights mainly consist of Nickel-Metal Hydride (NiMH) and Lithium-ion (Li-ion) types. NiMH batteries are favored for their cost-effectiveness, decent energy density, and ability to endure multiple charge-discharge cycles. They're also eco-friendly with low self-discharge rates, ideal for outdoor applications like solar lights.

Additionally, NiMH batteries are known for their wide operating temperature range and relatively simple charging requirements. On the other hand, Li-ion batteries offer higher energy density, resulting in longer runtimes and smaller sizes. Despite being pricier, Li-ion batteries are lightweight, longer-lasting, and less prone to self-discharge. They have a higher voltage output and faster charging capabilities compared to NiMH batteries, providing efficient energy storage for solar lights. Moreover, Li-ion batteries have a lower maintenance requirement and a longer shelf life, contributing to their popularity in solar applications.

The choice between NiMH and Li-ion depends on factors such as cost, desired runtime, environmental considerations, and specific application requirements. Both types find extensive use in various solar lighting setups, offering distinct advantages to suit different needs.