# Best Batteries  - Page 2

*By [Subhransu Sahu](https://research.g2.com/insights/author/subhransu-sahu)*


Batteries are devices that consist of one or more cells, used to convert stored chemical energy into useful electrical energy.

Thanks to new technologies and cost productivity, new battery applications are emerging in many areas, such as electric vehicles and microgrids. Several chemistries are in use, including lithium-ion (li-ion), VRB (Vanadium Redox Battery or Flow Battery), zinc-based, lead acid, and sodium-sulphur (NaS). Battery performance varies typically in terms of power, capacity, lifetime (cycling tolerance, round trip efficiency, power density, and depth of discharge.

In order to qualify for inclusion in the battery category, a product must:

- Store energy
- Provide power to electrical devices






## How Many Batteries  Products Does G2 Track?
**Total Products under this Category:** 19

### Category Stats (Jun 2026)
- **Average Rating**: 4.78/5 The average rating of products in this category, based on all submitted ratings

*Last updated: June 23, 2026*


## How Does G2 Rank Batteries  Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 0+ Authentic Reviews
- 19+ Products
- Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.




## What Is Batteries ?

[Greentech Providers](https://www.g2.com/categories/greentech)