12V 2000mAh NI-MH ECG Battery For 3RAY ECG-2201 ECG-2201G ECG-2303B​​ ECG

Product Information

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Product Description

This battery has been manufactured with high-quality components. It complies with every particular of the orginal manufacturer's regulations and is guaranteed against all manufacturing defects.
If the capacity (mAh) of the replacement battery is higher than that of the original battery, this will allow for a longer usage time.

Contact US

Big wholesale order is acceptable and the price is negotiable, please contact us for details.
OEM is also welcome. Please tell us the details of the product you want, then we can design and customize it for you.

Do not hesitate to contact us anytime before and after your purchase. If you have any questions on your purchase, please let me know via "contact now" or by email. We will solve it for you.
We are committed to ensuring that you are completely satisfied with every transaction. 100% Satisfaction guaranteed !
We will reply your mail within 24 hours normally. sometimes have a little delay due to the weekends or holidays.
(we work from Monday to Friday (8-17:30 GTM+8)
If you can't get our mail after 48 hours, please check your spam or contact to us. If you email us and I will be on service of you until you are satisfied with your purchase.

Who We Are...

Lee&Jack Power is a privately-owned business located in the southern coastal city Shenzhen, regarded as Silicon Valley of China's electronics industry. We focus on the development and production of portable power electronic products and systems including battery design, electronics design, battery chargers, circuit board manufacturing and pack assembly.

What We Do...

Lee&Jack Power designs and manufactures smart rechargeable battery packs for Original Equipment Manufacturers (OEM) worldwide. We specialize in tailoring our level of support to meet your needs.

Lee&Jack Power offers a line of SMBus Compatible STANDARD BATTERIES for device manufacturers looking for a quality battery solution in a common form factor.

We can also create a full custom battery & charger design for those applications where an "off-the-peg" design will not suit.

At all levels of service and with all Lee&Jack Power products, our clients can always expect:

Superior performance products and technology.
Expert advice from experienced professionals.
World-Class Service

What is a Smart Battery?

A smart Battery uses electronics to communicate with it's host device in order to protect, monitor & control all aspects of it's operation. The sophisticated electronics maximize energy density and cycle life ensuring that all the cells within the pack perform at their optimum level. The electronics can also provide highly accurate and precise fuel gauging, and report critical information about the state of health of the battery.

As portable electronic devices become increasingly complex, more and more devices are relying on smart battery packs to provide accurate fuel gauging, monitoring and diagnostics. Lee&Jack Power is dedicated to the design and development of these battery systems to support the needs of today's portable electronic devices.

Which Devices Use Smart Batteries?

Throughout our years of developing smart battery systems, the Lee&Jack Power team has developed custom packs for a huge variety of devices and clients. For our custom-products clients, we tailor our service and support to directly meet their needs. Our end result is always a superior performance solution that meets or exceeds performance requirements and business goals. Here's a small selection of typical products which use Lee&Jack Power smart battery packs.