Fourth Power vs XL Batteries, .
Fourth Power vs XL Batteries, ., compared side by side on 9 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Fourth Power is on 51/100 and XL Batteries, . on 17/100.
Where each one leads
Fourth Power
- our overall score: 51/100 against 17/100
XL Batteries, .
- agent readiness: 46/100 against 22/100
- domain rating: 24/100 against 1/100
At a glance
| Measure | Fourth Power | XL Batteries, . |
|---|---|---|
| What it is | Developing advanced battery technology for grid-scale energy storage. | XL Batteries develops advanced battery technology for electric vehicles and grid storage. |
| Category | Energy Storage, Battery Technology, Clean Energy, Grid Modernization | Battery Technology, Energy Storage, Electric Vehicles, Advanced Manufacturing |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 2017 | Not published |
| Headquarters | San Carlos, United States | Not published |
| Status | Active | Active |
Size, funding and growth
| Measure | Fourth Power | XL Batteries, . |
|---|---|---|
| Employees | Not published | 29 |
| Total funding | $49.0M | Not published |
| Latest round | Series A-Plus | Not published |
| LinkedIn followers | Not published | 2,479 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Fourth Power | XL Batteries, . |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 51/100 | 17/100 |
| Traction | Not published | 15/100 |
| Search visibility | 2/100 | 20/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (22/100) | D (46/100) |
| Domain ratingLink authority, 0-100 | 1/100 | 24/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Fourth Power | XL Batteries, . |
|---|---|---|
| CMS | Not detected | Squarespace |
Fourth Power vs XL Batteries, .: common questions
Which is better, Fourth Power or XL Batteries, .?
On our 0-100 score Fourth Power rates higher (51/100 against 17/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 9 data points above: read the rows that match what you are buying for.
How do Fourth Power and XL Batteries, . compare on the numbers?
Fourth Power leads on our overall score (51/100 against 17/100). XL Batteries, . leads on agent readiness (46/100 against 22/100), domain rating (24/100 against 1/100).
Read the full Fourth Power review and pricing or the XL Batteries, . review and pricing. You can also browse other Fourth Power alternatives we track.