Note: This company is Chinese-owned. Performance claims and publicly reported figures should be treated with additional skepticism until independently verified by non-affiliated third parties.

Summary

Shenzhen Grepow Battery Co., Ltd. (founded 1998) is one of China’s largest manufacturers of high-discharge-rate lithium polymer (LiPo) batteries, with its Tattu brand serving as the dominant commercial product line for professional drone power. Grepow supplies OEM battery packs to drone manufacturers globally and sells directly to commercial operators via the Tattu brand. Annual revenue is approximately RMB 2.2 billion (~$300M), with drone power solutions accounting for roughly 30% of the total. No domestic US alternative exists at comparable price and performance for high-C-rate LiPo packs at scale.

Key Facts

  • Founded: 1998
  • HQ: Shenzhen, China
  • Type: Private (Chinese)
  • Ownership: Privately held; Chinese
  • Key products: Tattu UAV LiPo packs (3S–14S, 2.0–44.4V, 1,300–44,000 mAh); high-C-rate custom packs; FPV racing packs; custom OEM battery solutions with BMS
  • Revenue / valuation: RMB 2.2B ($300M) annual revenue; drone segment ~30% of total
  • Manufacturing: 4 factories, 150,000 m² total, ~3,000 workers, 200+ engineers

What It Is / How It Works

Grepow’s core technical differentiation is high-discharge-rate lithium polymer battery manufacturing. For commercial drones, “C-rate” (the ratio of discharge current to capacity) is a critical specification: a multirotor motor may demand 30–50C for peak thrust, meaning a 10,000 mAh pack must supply 300–500A instantaneously. Achieving high C-rates at the cell level requires proprietary electrolyte formulations, electrode coating processes, and cell architecture — areas where Grepow claims differentiated expertise from its 25+ years of LiPo manufacturing.

The Tattu brand, launched in 2013, is the consumer-facing commercial tier. Tattu packs are sold with published performance specifications including capacity, C-rate, and cycle life data, and are widely used in professional cinematography drones, survey drones, and commercial multirotor platforms. Grepow provides OEM/ODM services to drone manufacturers who want branded, custom-specification packs — this is the supply channel for drone OEMs who do not manufacture their own cells.

No major US-based alternative exists at comparable price point or scale for high-C-rate LiPo packs. US drone manufacturers building NDAA-compliant platforms face the question of whether Chinese-sourced batteries are permissible — existing NDAA restrictions on drone components are focused on airframe and communication systems, not batteries, but the regulatory picture may evolve. Companies like Flux Power (Vista, CA) produce LFP packs for industrial equipment but do not currently offer high-C-rate LiPo alternatives.

Grepow also manufactures shaped and flexible batteries (for unusual form factors), batteries for wearables, and custom packs for robotics and automotive applications — the drone segment is large but not the only business.

Notable Developments

  • 2024: Tattu brand continues expansion into heavy-lift agricultural spraying drone market, offering large-capacity packs (22Ah–44Ah range) for agri-drone platforms.
  • 2023-ongoing: Growing scrutiny of Chinese battery components in US government drone procurement contexts; Grepow/Tattu not subject to the same direct restrictions as DJI or Autel but occupies an adjacent regulatory grey zone.
  • 2013: Tattu brand launched as commercial drone battery product line.
  • 1998: Grepow founded in Shenzhen.

Key People

Leadership

  • CEO / Founder: Not publicly disclosed in Western sources
  • LinkedIn: not found
  • Notes: Grepow’s leadership is not publicly profiled in English-language sources. The company is privately held and maintains a low public profile outside product marketing.

People — Last Reviewed: 2026-03-31

Supply Chain Position

Grepow operates at the Battery Pack / Cell Manufacturing layer in the drone value chain. The company sources lithium, cobalt, and other cathode materials from Chinese suppliers (not publicly disclosed) and manufactures complete LiPo cells and battery packs at its Shenzhen factories. Its customers include drone OEMs (packs sold under OEM branding) and end-user commercial operators (Tattu brand). ⚑ Shared infrastructure: Chinese battery cell supply chains for drones and for consumer electronics overlap significantly — Grepow and CATL/BYD serve different market segments but compete for the same upstream lithium and cobalt supply from Chinese refiners. The drone LiPo market uses different cell chemistry (LiCoO₂ cathode, high-energy formulation) than automotive (LFP or NMC), so Grepow is not in direct competition with automotive battery makers but shares upstream mineral supply chain risks.

Claim Verification

Claim: Grepow is “one of the largest manufacturers of high C-rate batteries in China” with ~RMB 2.2B revenue

Status: Unverified

Supporting sources:

  • Grepow About page / Genstattu About — Company-stated revenue and scale figures
  • Market observation: Tattu brand packs are widely distributed and appear consistently in professional drone platforms globally

Refuting / questioning sources:

  • Revenue and scale figures are company-stated with no independent audited verification found in public sources
  • “Largest” high-C-rate manufacturer claim cannot be independently verified; CATL and other Chinese battery makers are larger overall but serve different markets

Summary: Revenue and market position claims are plausible given Grepow’s broad product presence and distribution reach, but come from company self-reporting with no independent confirmation.

Sources