Want to customize lithium-ion battery pack?

HLC can help design your specific model and make it safety & durable! What’s more, the manufacturing & delivery time is guaranteed with our factory!

For Brand Owner

Sourcing lithium-ion battery for your brand?

HLC can guarantee you the unique 18650 battery with different series and parallels for your newest innovation. It can be based on the Standard of UL, EN62133 and GB31241.

For CM

Want to appoint us to your CM or assembly factory?

HLC can work with them from samples to mass production delivery. We also take care of the quality and delivery time based on purchase agreement.

China-based Factory

Lithium-ion Battery Manufacturer

HLC is a professional lithium-ion battery factory with 10 years working experiences. Our factory houses more than 200 people and achieve monthly output of 100,000 set.

HLC offers different combinations of series and parallels of cells, like 18650 batteries, 26650, 21700, and 32700 ones, aiming to meet customers’ unique demands.

We are making great efforts to achieve win-to-win situation and looking forward to long-term cooperation with you!

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Checkout Our Hot-selling Li-ion Battery

Customize all rechargeable battery pack based on client demand.

Highly Customized

18650 7S5P Battery Pack

18650 battey pack manufacturer
18650 battery pack

18650 battery pack process flow: cell selection, circuit design, assembly, aging. It may provide proper charger for battery. The production standard can be UL1642, IEC62133 or GB31241 based on your requests.

custom 18650 battery pack

Quality Control

Care was taken from the selection of the raw materials to bulk production.

PCM/BMS is the most important part of a lithium-ion battery! The functionalities of different lithium batteries all come down to the smallest details. To ensure the highest quality for every lithium battery in every batch, we manually check-in three aspects:
Cell selection has a great impact on the 18650 battery’s work performance and life span as well as its size, which will directly result in customers’ application. That’s why we consider this inspection step very important.
PCBA plays an important role in the whole assembly process. As it works for over-charge, over-discharge, short-circuit, over-temperature.
The last but not least, the assembly artwork shall keep them uniformity, such as voltage, resistance, and capacity.

18650 battery pack's PCBA
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Our Services Always Go The Extra Mile

Bulk Shipping

Bulk goods are transported by sea at a low cost usually.

Quick Shipping

If hurry, we can also send it to you by air at an extra cost.


Our materials are eco-friendly and biodegradable.


Generally safe and unlikely to fail, safety & durable.

OEM Avaliable

We support any form of OEM customization requirements

Global Support

contact us 24x7 to solve all your after-sales problems.

Our Happy Clients From 10 Countries

Good words from good people

Reliable & Durable

We are aiming to provide customized solutions and products for ultra-reliable and ultra-safe lithium battery systems for global customers.

The customized lithium battery solutions and products are widely used in medical electronics, commercial finance, security communications, transportation and logistics, surveying and mapping, photovoltaic energy storage and 3C consumer electronics.

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email with the suffix “”