What Chilwee Battery does

Chilwee Battery (legal name: Chilwee Group Co., Ltd.) is a privately held Chinese manufacturer of deep-cycle, rechargeable, and motive-power batteries founded in 1998 and headquartered in Changxing County, Zhejiang Province. The company operates eight production bases with a stated workforce of 20,000+ employees and an annual capacity of approximately 200 million batteries (as of 2015), with a product portfolio spanning lead-acid (VRLA, AGM, gel, graphene-enhanced), lithium-ion (LiFePO4, MnNiCo composite modules), sodium-ion, and sodium-nickel chloride chemistries. Key proprietary technologies include a graphene-enhanced lead-acid series delivering 52% improved cycle life, a non-cadmium container formation process that reduces production energy use by 28.5% and water use by 90%, and a VRLA gel line rated for 600+ cycles at 80% depth of discharge.

The company sells primarily B2B through direct manufacturer sales and a global regional distribution network, with a 12-language website and locally deployed service facilities providing technology training, warranty replacement, fault analysis, maintenance, and battery disposal. Target customer segments include electric two/three-wheeler OEMs, energy storage system integrators, industrial vehicle manufacturers (forklifts, golf carts), and solar energy system providers. Pricing is quote-based and not publicly disclosed. Chilwee is positioned as one of China's leading deep-cycle battery brands, with a subsidiary (Chaowei Energy & Power Co., Ltd.) supporting its lead-acid operations, and was among the first batch of Chinese battery manufacturers to pass national environmental protection inspection in 2011.

Name

Chilwee Battery

Legal name

Chilwee Group Co., Ltd.

Website

https://chilweebattery.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Chilwee Battery (Chilwee Group Co., Ltd.) is a privately held Chinese manufacturer of deep-cycle lead-acid, lithium-ion, sodium-ion, and graphene-enhanced batteries serving electric two/three-wheeler OEMs, energy storage integrators, industrial vehicle makers, and solar system providers worldwide via B2B wholesale and regional distribution.

Ownership category

akta.pro rank

Product category

Industrial Batteries

NAICS

Battery Manufacturing (33591), Battery Manufacturing (335910)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Battery Cells (Li-ion, LFP, Sodium-ion, Lead-acid, NiMH) (IMAGAHAA)

akta.pro secondary industries

Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB), Battery Cell Manufacturing (EV) (IMACACAB), E-Mobility Batteries & Swappable Packs (Consumer) (CRACASAI)

Keywords

• Deep cycle batteries
• Lead acid batteries
• Lithium ion batteries
• Energy storage systems
• Motive power batteries

Headquarters

HQ city

Changxing

HQ country

China

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Personnel, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Battery Manufacturing and Sales: Chilwee Group manufactures and sells deep cycle batteries, rechargeable batteries, lithium ion batteries, silicone gel batteries, and gel batteries. Revenue is generated through direct product sales to distributors, OEM customers, and end-users globally.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Chilwee Group manufactures and sells rechargeable batteries — including deep cycle lead-acid (VRLA/AGM/GEL), lithium-ion, sodium-ion, graphene-enhanced lead-acid, and sodium-nickel chloride batteries — for electric mobility (e-bikes, e-scooters, e-tricycles, electric motorcycles, forklifts, golf carts), industrial motive power, and stationary energy storage (solar, backup power). Production is conducted across eight Chinese manufacturing bases with annual output of approximately 200 million batteries, with products distributed globally through direct sales and regional distributors.

Product overview

Chilwee Battery (Chilwee Group Co., Ltd.) is a manufacturer of deep cycle batteries and rechargeable power solutions based in China. The company operates as a multi-product portfolio with distinct battery technologies and application categories. The core offerings include: (1) Motive Power Battery line encompassing lead-acid batteries (VRLA, AGM, GEL chemistries), lithium-ion batteries, and the Graphene Battery Series with enhanced performance characteristics; (2) Sodium-ion Battery as an emerging technology product for electric vehicles; (3) Solar Power Storage solutions including portable batteries, wall-mounted and floor-type storage systems, and hybrid inverters; (4) Reserve/Energy Storage industrial batteries including deep-cycle storage and LiFePO4 options; (5) Gel Solar Battery line; (6) Portable Generator products including power stations and camping generators; (7) Durathon Battery featuring sodium-nickel chloride technology; and (8) Charger products. The company produces approximately 200 million batteries annually across eight production bases with over 20,000 employees. Key technologies include non-cadmium production processes, graphene-enhanced lead-acid batteries, and various lithium-ion chemistries using MnNiCo composite and LiFePO4 materials.

Differentiator

Problem solved

Functional benefit

Products and services

• Motive Power Battery Lead acid and lithium ion batteries designed for electric vehicles including electric bicycles, tricycles, motorcycles, forklifts, and electric tools. Includes VRLA (AGM, GEL) and lithium-ion chemistries for OEM and aftermarket buyers.
• Sodium-ion Battery Emerging sodium-ion battery technology for electric vehicle applications, released as a high-end product offering.
• Solar Power Storage Energy storage solutions for solar applications including portable batteries, wall-mounted units, floor-type systems, and hybrid inverters for residential and commercial solar installations.
• Reserve/Energy Storage Industrial-grade storage batteries for backup power and energy storage applications, including VRLA and LiFePO4 options across multiple voltages and capacities.
• Gel Solar Battery Gel-type VRLA batteries designed specifically for solar energy storage applications with deep cycle performance.
• Portable Generator Portable power stations and generators for outdoor, emergency, and camping applications.
• Durathon Battery Specialized battery line including sodium-nickel chloride technology for road vehicle applications.
• Charger Battery charging solutions including chargers for electric bikes, scooters, cars, and motorcycles.
• DZF/EVF Series VRLA Gel Battery VRLA gel battery designed for motive power applications including electric bikes, scooters, tricycles, and motorcycles. Features non-cadmium design, long cycle life (600 cycles @ 80% DOD), and large current discharge capability.
• Graphene Battery Series (6-DZF-22) High-energy VRLA battery based on graphene technology. Provides 10% improved initial capacity, 16% capacity improvement after 69 cycles, 34% improved discharge time, 40% reduced water loss rate, 18% improvement at -15°C, and 52% improved cycle life (610 cycles @ 100% DOD) compared to standard batteries.
• 48V Lithium Ion Battery CC488.8/10DG 48V lithium ion battery for electric bikes with tube type design. Features automotive-level cells, 8.8/10Ah capacity, 3.0kg weight, 600+ cycle life, 0°C capacity retention rate ≥90%, monthly self-discharge ≤5%.
• 6-EVF-50 VRLA GEL Battery 12V 50Ah (3hr) VRLA gel battery for electric bicycles. Features 600 cycles @ 80% DOD, 320A maximum discharge current, enhanced ABS container, high temperature resistance.
• 3-CNFJ-200 Deep-cycle Storage Battery 6V 200Ah (10hr) VRLA flat gel battery for renewable energy storage and motive power. Features silicon gel technology, 1000 cycles @ 80% DOD, 2000 cycles @ 50% DOD, 4000 cycles @ 30% DOD, M8 terminal.
• Deep Cycle Gel Solar Battery (6-CNF-250) 12V 250Ah deep cycle gel solar battery with non-cadmium design. Features 520mm x 268mm x 220mm dimensions, 68KG weight, environment-friendly design.
• 6-EVF-100A VRLA GEL Battery 12V 100Ah (3hr) VRLA gel battery for electric vehicles including automobiles, road vehicles, golf carts, and low-speed electric vehicles. Features 600+ cycles @ 80% DOD, 500A maximum discharge current.
• 6-DZM-20 VRLA GEL Battery 12V 20Ah (2hr) VRLA gel battery for motive power applications including electric bikes, scooters, tricycles, and motorcycles. Features 150A maximum discharge current, 600 cycles @ 80% DOD.
• 3-EVF-200 VRLA GEL Battery 6V 200Ah (3hr) VRLA gel battery for electric vehicles. Features 180Ah at 2h rate, 1000A maximum discharge current, 40A maximum charge current, enhanced ABS container.
• BN6020LC Lithium Ion Battery Module 60V 20Ah (2hr) lithium ion battery module using MnNiCo composite technology. Features 800+ cycles @ 100% DOD, BMS protection, waterproof/fire-proof/shock-resistance design, 9.5kg weight.
• KNY Series Portable Storage Battery Portable energy storage solutions including 12V, 24V models with capacities of 100Ah and 150Ah. Features convenient plug-in/out design, 3000 cycle life.
• KNY-HV Series High Voltage Storage System High voltage energy storage systems (KNY-HV10250, KNY-HV102100) for residential and commercial solar applications.
• LiFePO4 Energy Storage Batteries Lithium iron phosphate batteries for reserve energy storage in various voltages (12V, 24V, 48V) and capacities (12Ah to 600Ah).

Quantifiable outcome

• 52% improvement in cycle life (610 vs 400 cycles) for Graphene batteries
• +5 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Clarios: World's largest automotive battery manufacturer producing lead-acid and low-voltage lithium products. Comparable in lead-acid scale and product breadth but predominantly automotive vs. Chilwee's motive-power focus.
• VARTA AG: German battery maker covering micro-batteries, automotive, and industrial storage. Comparability is partial — overlapping lithium-ion and storage product lines but different primary end-markets.
• East Penn Manufacturing: Privately-held North American lead-acid battery manufacturer serving automotive, commercial, and motive-power markets. Comparable private-company status, lead-acid depth, and motive-power/industrial focus.
• Exide Technologies: Global lead-acid and lithium-ion battery manufacturer serving automotive, industrial, and motive-power applications. Comparable chemistries and segments though broader geographic spread and more automotive-weighted mix.
• GS Yuasa: Japanese battery manufacturer with VRLA, lithium-ion, and motive-power products for automotive, motorcycle, and industrial applications. Overlapping chemistries and end-markets, though more diversified across motorcycle starter and industrial.

Direct peers

• EnerSys: Global industrial battery manufacturer with deep-cycle, motive-power, and reserve-power VRLA/Li-ion products. Highly comparable product portfolio in motive and stationary storage segments.
• Tianneng Power International: One of China's largest lead-acid and lithium-ion battery manufacturers serving e-bikes, electric vehicles, and energy storage. Closest direct comparable given similar product portfolio, Chinese manufacturing base, and motive-power focus.
• Coslight Technology: Chinese battery manufacturer producing VRLA, lithium-ion, and motive-power batteries for similar e-bike, EV, and industrial applications. Direct overlap in chemistry mix, geography, and OEM customer base.
• Camel Group: Major Chinese automotive and motive-power battery maker with lead-acid and lithium-ion product lines serving EVs, e-bikes, and start-stop vehicles. Comparable scale, product mix, and Chinese OEM channel.

Regional players

• Amara Raja Batteries: India's largest battery manufacturer producing automotive and industrial lead-acid products plus emerging lithium offerings. Strong portfolio overlap but operates primarily in the Indian subcontinent rather than China/global markets.

Market position

Strengths1 record

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/Chilweeleadacidbattery
• LinkedInlinkedin.com/company/chilweebattery

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Chilwee Battery