Energy Tree Technology Group Limited

Pack batteries engineered for real work.

We research, manufacture, and supply lithium pack systems for power tools, home energy storage, and starter applications.

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Products

Battery packs for every scenario

From handheld tools to household backup and vehicle starting, Energy Tree builds pack platforms that balance power, safety, and service life.

Tool battery pack product sheet
ET-T

Tool Battery Packs

High-drain packs for cordless power tools — compact form factors, stable discharge, and durable cycle performance for professional and DIY use.

  • High energy density — lightweight packs with lasting runtime
  • Fast charging — efficient recharge to reduce downtime
  • Intelligent BMS — real-time monitoring and cell balancing
  • Multi-layer protection — overcharge, over-discharge, short-circuit, and thermal safeguards

Series focus: 20V lightweight packs (about 5–12 Ah) for drills and DIY tools; 40V high-output packs (about 5–15 Ah) for impact wrenches, grinders, and outdoor equipment.

Home energy storage product sheet
ET-H

Home Energy Storage

Residential storage packs designed for self-consumption, backup power, and seamless integration with solar and home energy systems.

  • Configurable capacity — modular designs sized to household loads
  • Long cycle life — LiFePO4 platforms engineered for daily cycling
  • Smart BMS — monitoring suited to backup and PV storage duty
  • Wide operating range — stable performance across typical residential climates

Series focus: 51.2 V LiFePO4 home systems roughly in the 100–420 Ah range (about 5–22 kWh class), for backup power, solar storage, and emergency supply.

Automotive jump starter product sheet
ET-S

Starter & Emergency Power

Reliable cranking and portable jump-start packs engineered for cold starts, vibration resistance, and dependable roadside rescue.

  • Strong starting power — high CCA / peak current for confident ignition
  • Intelligent management — BMS monitoring for performance and safety
  • Multi-layer protection — reverse polarity, over-current, and short-circuit defenses
  • All-weather readiness — wide temperature operation for seasonal extremes

Series focus: 12 V automotive starter packs covering common form factors; portable jump starters with peak currents typically in the 500–2000 A class for cars, SUVs, and light trucks.

Applications

Where our packs deliver

We tailor pack chemistry, BMS, and mechanical design to the load profile of each market.

  1. Power tools

    Support cordless drills, saws, and outdoor equipment with packs built for high peak current and field durability.

  2. Home backup & solar

    Store surplus generation and keep critical loads online during outages with configurable capacity and clear safety design.

  3. Vehicle starting

    Deliver dependable cranking power for cars, motorcycles, and light equipment across seasonal temperature swings.

  4. OEM & multi-scenario

    Partner with brands and manufacturers on custom pack layouts, connectors, and certification-ready designs.

Capabilities

From cell selection to finished pack

Energy Tree combines pack engineering, controlled manufacturing, and layered protection so products perform as specified in the field.

Pack R&D
Cell matching, thermal paths, and mechanical structures developed for tool, storage, and starter duty cycles.
BMS & safety
Multi-layer protection covering overcharge, over-discharge, short circuit, and temperature extremes.
Manufacturing quality
Process control, inspection, and aging tests that support consistent output across production lots.
Application support
Specification alignment, integration guidance, and after-sales technical response for OEM partners.

About

Power rooted in practical engineering

Energy Tree Technology Group Limited focuses on the research, production, and sales of Pack battery systems. We serve tool brands, energy storage integrators, and starter-battery channels with products designed for clear performance, dependable safety, and scalable manufacturing. Our goal is straightforward: deliver pack solutions that work hard in the environments they were built for.

Contact

Start a project conversation

Email us with your application, target capacity, and timeline. We will respond with next steps.

Email qtdata@energytreehk.com

Address Room A, 11/F, China Insurance Building, 48 Cameron Road, Tsim Sha Tsui, Kowloon, Hong Kong