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Proper Voltage

4 viewers · 30d

Total raised

$25.0M

+$6.5M this year

2 filings since 2019 · latest Equity filed

Cumulative raised
LAST ROUND
Equity · $6.5M
ROUNDS
2
INVESTORS
42
FOUNDED
N/A
HQ
Carlsbad, CA
SECTOR
Energy
EMPLOYEES
N/A
30D VIEWERS
4

AI overview

Updated

Proper Voltage (formerly ZapBatt) builds a Battery Operating System (bOS) that acts as a universal control layer between advanced battery chemistries and the power systems they go into. The bOS handles voltage adaptation, real-time optimization, and chemistry-specific management so manufacturers can adopt sodium-ion, lithium titanate (LTO), lithium-silicon, and niobium-titanate cells without redesigning or recertifying their products. The company targets critical power, defense, robotics, and data center applications and is based in Carlsbad, California.

What sets it apart

A chemistry-agnostic integration layer that lets emerging battery chemistries drop into existing product designs at existing voltage standards, avoiding the redesign and recertification cycle that normally blocks their adoption.

Funding history

2 rounds
EquityMay 12, 2026
Form D
+$6.5M$25.0M total
SAFE+1Feb 15, 2019
Form D/A
+$18.5M$18.5M total

Products

1 tracked

Battery Operating System (bOS)

Battery management system

A software-driven control layer that sits between battery chemistry and the end product, adapting voltage and managing the pack so any supported chemistry can work in any product without a redesign.

  • Universal chemistry adaptation across sodium-ion, LTO, lithium-silicon, and niobium-titanate cells
  • Voltage adaptation to existing product power standards
  • Real-time energy optimization and safety management
  • Integration without product redesign or recertification

Links

WebsiteLinkedInSEC EDGAR filings