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Proper Voltage
Carlsbad, US · Delaware corporation · 1 known investors
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Proper Voltage offers a platform that adapts battery chemistries to different products, letting manufacturers and engineers integrate a wider range of battery technologies through voltage adaptation. It targets product manufacturers in the energy and power space.
Founders & leadership
GS
Gregory SlawsonExecutive
CW
Charles WelchNamed on SEC filing
DF
David FelzerNamed on SEC filing
Board
CB
Craige BerteroBoard director
Investors · 1
Commonweal Ventureslisted by Commonweal VenturesNew York · $500K – $2.5M
How we know: Commonweal Ventures's portfolio page · the VCSheet dataset · Not right? Tell us
Reported raises · per SEC filings
Form D private placements$25M disclosed across 2 rounds · 2019–2026
▶$6.5MraisedMay 2026 · 19 investors · Other TechnologyRule 506(b)
▶$6.5MraisedMay 2026 · 19 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Craige BerteroDirector
- Charles WelchExecutive Officer, Director
- Gregory SlawsonExecutive Officer
- David FelzerExecutive Officer, Director
- Offering amount
- $10M
- Amount sold
- $6.5M
- First sale
- May 2026
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$18.5MraisedMay 2026 · 42 investors · Other TechnologyRule 506(b)
▶$18.5MraisedMay 2026 · 42 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Charles WelchExecutive Officer, Director
- David FelzerExecutive Officer, Director
- Craige BerteroDirector
- Gregory SlawsonExecutive Officer
- Offering amount
- $18.5M
- Amount sold
- $18.5M
- First sale
- Feb 2019
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Related companies · 1
Companies working in the same space as Proper Voltage.
Frequently asked questions
- What does Proper Voltage do?
- Proper Voltage offers a platform that adapts battery chemistries to different products, letting manufacturers and engineers integrate a wider range of battery technologies through voltage adaptation. It targets product manufacturers in the energy and power space.
- Who are Proper Voltage's investors?
- Proper Voltage's investors include Commonweal Ventures.
- How much funding has Proper Voltage raised?
- Proper Voltage has disclosed $25M raised across 2 rounds.
- Where is Proper Voltage headquartered?
- Proper Voltage is headquartered in Carlsbad, US.