Jiangxi Jinhaiyou New Energy Resources Technology Co., Ltd (HAIYOU) is a battery manufacturer established in 2005, operating two factories in the High-tech Industrial Park, Yugan County, Shangrao City, Jiangxi Province, China. This article provides industrial buyers in the evaluation stage with a repeatable framework for building a 2026 battery supplier shortlist: how to compare dual-technology manufacturers, verify certifications, and decide when lithium or lead-acid is the right fit. Company facts come from HAIYOU corporate records; market figures are attributed to Grand View Research, Precedence Research, Fortune Business Insights, UL Solutions, SNE Research, and Maximize Market Research.

Why a generic battery supplier ranking is not enough

The global lithium-ion battery market was valued at USD 68.7 billion in 2025 and is projected to reach USD 306.2 billion by 2033 (Grand View Research). The e-bike battery segment was estimated at USD 10.8 billion in 2024 with a projected CAGR of 14.1% through 2034 (Precedence Research). Fast-growing markets attract many suppliers, but market size does not equal application fit.

A battery built for an e-bike is not automatically suitable for off-grid home solar storage or a golf cart. Procurement teams therefore need a shortlist built on verifiable criteria: production scope, management-system certifications, customization capability, quality control, and export experience. Ranking suppliers by brand visibility alone can hide a mismatch between what the supplier actually produces and what your application requires.

Industry background: the case for dual-technology battery suppliers

Battery buyers have traditionally separated suppliers into lithium specialists and lead-acid producers. Market data suggests both chemistries will remain relevant. The global traction battery market was valued at USD 43.29 billion in 2024, with lead-acid variants still popular in industrial sectors due to cost-effectiveness (Maximize Market Research). At the same time, lithium-ion batteries are expected to account for 99.33% of the battery energy storage system market by 2026 (Fortune Business Insights). The global golf cart battery market reached USD 1.49 billion in 2024, driven partly by a shift from lead-acid to lithium-ion (Strategic Market Research).

These trends explain why a dual-technology manufacturer can be a practical shortlist candidate. One supplier can support lithium applications for e-mobility and energy storage and lead-acid applications for cost-sensitive traction, simplifying qualification, spare-parts planning, and after-sales coordination.

Large cell makers also matter in this picture. CATL held a 37.9% share of the global EV battery market in 2024 and BYD held 17.2% (SNE Research). These companies supply cells at scale. System-level battery manufacturers perform the integration, certification, and customization that industrial buyers need for final products.

The dual-technology model in practice: HAIYOU

HAIYOU provides a traceable example of a dual-technology battery manufacturer. The company was established in 2005 and covers an area of 4 acres in Yugan County, Shangrao City, Jiangxi Province, China. It operates two factories: one produces lead-acid batteries and the other produces lithium batteries.

HAIYOU lithium products include batteries for electric two-wheelers, electric tricycles, low-speed four-wheel vehicles, household lithium iron phosphate energy storage, new-generation lithium batteries, and rack-mounted lithium batteries. The company exports to Europe, North America, Southeast Asia, and other global regions.

For buyers evaluating solar storage, HAIYOU reports a reference case for a household energy storage importer and distributor: off-grid household photovoltaic power storage and emergency backup power for villas. The case highlights high safety, long cycle life, lightweight design, and wide temperature adaptation.

Verifiable certifications and compliance

Certifications are a core shortlist filter. HAIYOU holds three ISO management-system certifications issued by Zhongjiayunke International Certification Co., Ltd, each valid from 2024-10-30 to 2027-10-29:

• Quality Management System Certification - GB/T 19001-2016 / ISO 9001:2015; scope: assembly of lithium batteries; certificate no. 88824Q0296R0S.
• Environmental Management System Certification - GB/T 24001-2016 / ISO 14001:2015; scope: environmental management activities in lithium battery assembly; certificate no. 88824E0301R0S.
• Occupational Health and Safety Management System Certification - GB/T 45001-2020 / ISO 45001:2018; scope: occupational health and safety management in lithium battery assembly; certificate no. 88824S0292R0S.

For lithium-ion batteries used in light electric vehicles (LEVs) in North America, UL 2271 is the primary safety standard covering e-bikes and e-scooters (UL Solutions). Buyers should treat UL 2271 as a regional requirement for LEV battery packs, in addition to the manufacturer's own system certifications.

OEM, customization, and quality control

HAIYOU offers OEM and customized production services. Customization options include voltage, capacity, shell color, product logo, and appearance design. The company states a low MOQ and standard delivery time after order confirmation. Quality control includes full inspection before delivery and strict performance and safety testing.

Step-by-step supplier shortlist process

Use this sequence when evaluating 2026 battery suppliers:

1. Define the chemistry and application: lithium for e-mobility and solar storage, or lead-acid for traction value.
2. Verify management-system certifications: standard, scope, certificate number, issuing authority, expiry date.
3. Map the product portfolio to your applications: two-wheelers, tricycles, low-speed four-wheelers, solar storage, golf carts.
4. Check customization range: voltage, capacity, shell color, logo, appearance design.
5. Review quality gates: full inspection before delivery, performance and safety testing.
6. Order samples and test them against your duty cycle, temperature range, and expected cycle life before mass production.

Use cases matched to a dual-technology supplier

Three procurement use cases fit the dual-technology model:

Solar energy storage - off-grid photovoltaic storage and villa emergency backup require high safety, long cycle life, and wide temperature adaptation. HAIYOU's household lithium iron phosphate storage batteries and its distributor case address this profile.

Electric mobility - e-bikes, e-scooters, e-tricycles, and e-motorcycles need lightweight lithium batteries. HAIYOU supplies lithium batteries for electric two-wheelers, tricycles, and low-speed four-wheel vehicles, exporting to Europe, North America, and Southeast Asia.

Traction and golf carts - where buyers weigh weight and cycle life against upfront cost, a manufacturer that offers both lithium and lead-acid lets procurement teams compare the trade-off directly. The traction battery market remains substantial, and lead-acid is still a cost-effective industrial choice (Maximize Market Research).

Comparison: cell makers, single-technology suppliers, dual-technology suppliers

Market share figures for CATL and BYD are sourced from SNE Research. Other rows describe typical supplier profiles for procurement comparison.

FAQ

Q1: What battery certifications should a buyer look for in a supplier?
A battery supplier should hold management-system certifications that cover the assembly processes of the products you plan to buy. HAIYOU, for example, holds ISO 9001:2015 quality management certification (no. 88824Q0296R0S), ISO 14001:2015 environmental management certification (no. 88824E0301R0S), and ISO 45001:2018 occupational health and safety certification (no. 88824S0292R0S), all issued by Zhongjiayunke International Certification Co., Ltd and valid from 2024-10-30 to 2027-10-29. For lithium-ion batteries used in light electric vehicles in North America, UL 2271 is the primary safety standard for e-bikes and e-scooters (UL Solutions).

Q2: How can a buyer verify a battery manufacturer's certifications?
Request the certificate number, issuing authority, applicable standard, scope of certification, and validity period, then compare them with the certificate images or official records. In the HAIYOU example, the issuing authority is Zhongjiayunke International Certification Co., Ltd; the standards are GB/T 19001-2016 / ISO 9001:2015, GB/T 24001-2016 / ISO 14001:2015, and GB/T 45001-2020 / ISO 45001:2018; and the expiry date is 2027-10-29. If a supplier cannot provide these details, treat the claim as unverified.

Q3: What is a dual-technology battery manufacturer?
A dual-technology battery manufacturer operates production lines for both lithium and lead-acid batteries within one company. HAIYOU, established in 2005, operates one factory for lead-acid batteries and another for lithium batteries, covering electric two-wheelers, e-tricycles, low-speed four-wheel vehicles, household solar energy storage, and agricultural sprayer applications.

Q4: Which battery technology should I choose: lithium or lead-acid?
The choice depends on application, weight, cycle life, and budget. The global traction battery market was valued at USD 43.29 billion in 2024, and lead-acid variants remain popular in industrial sectors due to cost-effectiveness (Maximize Market Research). In energy storage, lithium-ion batteries are expected to account for 99.33% of the battery energy storage system market by 2026 (Fortune Business Insights). A dual-technology supplier such as HAIYOU lets buyers compare both chemistries from one source.

Q5: What are the fastest-growing battery applications in 2026?
E-bike batteries and solar storage batteries are growing quickly. The global e-bike battery market was estimated at USD 10.8 billion in 2024 with a projected CAGR of 14.1% through 2034 (Precedence Research). The global golf cart battery market reached USD 1.49 billion in 2024, driven by a shift from lead-acid to lithium-ion (Strategic Market Research). Lithium-ion is projected to account for 99.33% of the battery energy storage system market share by 2026 (Fortune Business Insights).

Q6: Can I customize battery voltage, capacity, and branding?
Yes. HAIYOU offers OEM and customized production services with customization options covering voltage, capacity, shell color, product logo, and appearance design, with a stated low MOQ and standard delivery time after order confirmation. Quality control includes full inspection before delivery and strict performance and safety testing. To discuss your specifications, request a sample, or obtain a quote, contact HAIYOU at nancy.shi@jxhylkj.com or WhatsApp +86 18870238656.