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That Boosts Profits, Not Your Budget

Battery manufacturer

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Aerial-Surveying-Modeling
Battery
Drone battery

Industries We Serve

Commercial and industrial energy storage
Commercial and Industrial Energy Storage
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Home Energy Storage
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Drones
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Communication Equipment
ebike
Electric Bikes
Compact RV Travel
Caravan

Currently, our cooperative clients encompasses industries such as Commercial and Industrial Energy Storage,Home Energy Storage,Drones,Communication Equipment,Electric Bikes,and Caravan.

Custom Your Products

Got An Idea In Mind?

Make your designs into real-life samples and production to help you focus on sales only.

Over 16 years of experience in battery product procurement, we connect the design dreams with the reality.

With our vast supplier network, we bring your innovative designs to life swiftly.

Partnering with giants likeย Petcoย andย Samโ€™s Club, we understand diverse market needs.

We closely follow the latest trends in battery products to ensure that every custom-made product we produce meets market demands and maintains relevance.

Customized Solutions b539b1612e1046eaa727cc4cfe50cee8
Before
After

Why herewin ?

Excellent equipment

Complete scale production line and inspection equipment

Testimonials

Numerous good feedbacks from customers after purchasing

Overseas factory

China, Vietnam, Africa factories

Complete certificates

All national standards are available

Our popular Battery

Drone Battery

Battery Cells

Home Energy Storage Solutions

Semi-solid State Battery

Industrial EV Battery Packs

Commercial &Industrial Energy Storage Solutions

Different Services For Clients With Different Patterns

FOR OFFLINE CLIENTS

Flexible Delivery Time

Reliable delivery schedules and warehousing support.

High Cost-Effectiveness

Competitive pricing to maximize overall value.

Wide Product Selection

Diverse options to cater to all market segments.

FOR ONLINE CLIENTS

Low MOQ

Flexible MOQ with mixed product options.

Custom Logo

Personalized logo customization for small batches.

One-Stop Marketing Package

Provide quality images, videos to enhance sales revenue.

FOR BRAND CLIENTS

Exclusive Regional Rights

Provide all of herewin's resources and capabilities

R&D Resources

Custom sample within 7 days with R&D capabilities.

Fast Delivery

Efficient production and ship within 25 days at the fastest.

Explore Herewin Factory: The Source of Quality

Founded in 2019, Shenzhen Jarwin Time Technology Co., Ltd. is backed by a founding and operational team with over 20 years of extensive experience in the battery industry. It specializes in developing and producing high-performance lithium-ion polymer batteries.
Gain a comprehensive insight into who we are and what we stand for. By exploring the meticulous precision of our
production lines, the efficient management of our factories, and the genuine feedback from our satisfied customers,
youโ€™ll see how we ensure excellence at every step of the process

BMS Role in Drones
Drone Battery Challenges

Herewinpower:Your exclusive battery partner

International buying shouldn't feel like a blind wire transfer.

We are committed tocontinuous innovationin battery technology,ensuring our productsremain at the forefrontof industry advancements.

With a multi-country supply chain, it can provide diversified manufacturing capabilities, laying the foundation for future globalization and internationalization.

Founded 2019, Shenzhen, China

It specializes in developing, developing, and producing high-performance lithium-ion polymer batteries.

30+ containers shipped to the EU and LATAM in the last 12 months

24-hour price sheets ยท weekly factory updates ยท single WhatsApp line for after-sales

We have a team of engineers and logistics coordinators who stay on the call after the pallet leaves the dock.

Our goal is simple: predictable stock, clean paperwork, and answers in hoursโ€”not weeksโ€”so your project lands on time and on budget.

Frequently Asked Questions About Herewin

What are our company's advantages?

ยทย In-house cell factory & R&D team:ย Total capacity of 6GWh (600 million Wh). Many competitors lack their own cell factories and battery R&D teams. Our cells offer ample, true-to-label capacity.
ยทย In-house battery pack (PACK) factory:ย We provide ODM/OEM turnkey solutions โ€“ from cells to finished battery packs โ€“ for manufacturers, integrators, and end-customers.

What is the company's Minimum Order Quantity (MOQ)?

Our MOQ starts fromย 1 unit. For first-time collaborations, we accommodateย small trial ordersย to facilitate product performance testing. Larger quantities benefit from better unit pricing.

Do you provide samples? What are the lead times for samples and mass production?

Stock samples shipย within 1 business day. Custom samples typically takeย 5-7 business days. Mass production lead times are generallyย 15-25 days, depending on order volume and customization requirements.

What are the payment terms and trade terms?

We acceptย T/T (Telegraphic Transfer). Standard terms:ย 30% deposit + 70% balance paid before shipment. Before final payment, we provide actual product photos and packaging confirmation images.

What is the warranty period?

Standard warranty isย 12 months. Extended warranties ofย 18-24 monthsย are available for some custom batteries, subject to the specific product and cooperation agreement.

Do the batteries meet international certification standards?

Our products are certified to international standards including UN38.3, MSDS, CE, and RoHS, supporting global shipping and market access.

Batteries use lithium compounds as cathodes; different compounds have different properties. What are the main ones used in our company?

We primarily utilize:
ยทย Lithium Cobalt Oxide (LiCoOโ‚‚ / LCO):ย High energy density and well-rounded performance.
ยทย Nickel Manganese Cobalt Oxide (LiNiMnCoOโ‚‚ / NCM):ย More reactive; balancing energy density, safety, and cost by adjusting element ratios.
ยทย Lithium Iron Phosphate (LiFePOโ‚„ / LFP):ย High safety, long cycle life, low cost โ€“ ideal for safety-critical and cost-sensitive applications.

What is battery cycle life? What is the standard for drone batteries?

Cycle life is a key measure of battery durability, indicating performance retention after repeated charge/discharge cycles. According to national standards, a battery should retainย at least 70% of its initial capacity after 300 cycles.

What are the battery capacity and discharge rate (C-rating) requirements for different drone types?

Drone battery requirements vary significantly by application:
ยทย Large, stable-operation drones:ย Require 5โ€“25C discharge rates, with capacities up to 70Ah.
ยทย FPV (First-Person View) drones:ย Require smaller capacities (5โ€“10Ah) but very high discharge rates (60โ€“100C).
We typically useย 3.7V or 3.85V high-performance cellsย for custom assemblies to meet diverse drone needs for high discharge rates and high energy density.

Our Services

PRODUCTION
The company boasts large-scale production capacity and a multi-base layout, supported by a comprehensive production management system and quality control system.
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SERVICE
Based on 20+ years of experience in the lithium industry, Herewin has become a leading manufacturer of Li-ion batteries and a provider of industrial and commercial energy storage solutions in China, offering a one-stop solution from design concept to mass production.
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MANUFACTURING
The R&D platform is highly skilled, led by the Chief Scientist who enjoys the government special allowance. The team is supported by a post-doctoral research station and is equipped with 147 sets of advanced experimental and testing equipment, ensuring continuous innovation and high-quality research.
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DEVELOPMENT
Herewin firmly embraces the direction of โ€œlow-carbon economy and green developmentโ€, and considers โ€œbuilding China's and even the world's first-class new energy enterpriseโ€ as its strategic goal. It aims to lead industry development and explore the energy frontier.
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Get In Touch

lf you have any needs, please fill in the form below and we will contact you as soon as possible.

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Call us

We look forward to your call and will be pleased to assist you.

We are available for you 24 hours a day, 7 days a week.

+86 19866906773

in**@********om.cn

Our address

Welcome to visit our factory

102, Lecailndustrial Park, No.10 Kaijing Road, Zhukeng Community, Longtian Street, Pingshan District, Shenzhen, Guangdong, China

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