Fundraising Fox

Proper Voltage

Carlsbad, US · Delaware corporation · 1 known investors

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

Reported raises · per SEC filings

Form D private placements

$25M disclosed across 2 rounds · 2019–2026

$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
Full filing on SEC EDGAR ↗
$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
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Competitors · 1

by search overlap

Companies competing with Proper Voltage for the same Google search keywords, organic and paid, via search-intersection analysis.

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.