loading

 sales@gsl-energy.com     0086 13923720280

12V Makita NiCad to Lithium Ion Conversion of 1222 Battery(LiPo Too)

I bought a new one?
\"3 amp hour battery for my 12 volt ranch.
It was a dumb bullet from the beginning.
The low power may have been on the shelf for 5 years and it doesn\'t get better to use it.
The replacement had screws to separate the battery, the old one didn\'t, so I noticed that the old one could be used as a lithium ion conversion, so I found a convenient place to cut in with a hacksaw and then separate the plastic.
Cut around and then the screwdriver blade will split half well and it will even go back to its original position and stay there.
Put the old battery in a secondary battery and screw the plastic case off it and the battery is broken.
The top connector is also coming out, so you have a temperature sensor and something else connected to the side of the battery.
I left the temperature sensor there, but the other thing doesn\'t seem to affect charging.
Please comment if anyone knows what it is.
Cut off and save the battery connector from the battery.
You will need 3 lithium ion 18650 batteries nominal 3. 7 Volts .
Don\'t bring the following.
No more than 4 volts for 5 volts. 2 Volts -A BMS (
Battery Management Board)for 3S (3 in series )
And an old battery box.
Lithium ion battery-Watch out .
You want the capacity as high as you can, but they are all lying.
I got 100 ads.
I got about 900 mAh. BMS (
Battery Management Board)for 3S (3 in series )
Search here.
You can do better than I took a sharp chisel and removed the plastic holder from the top and bottom.
I used a protective board and I bought it on ebay for pennies and ran the wires as shown.
Understand it correctly, otherwise it will not work and use the same color for red and black, Pos and Neg, and other wires.
I used greenI and pre-
Canned insulated wire from ebay.
First peel the end and tin and use a strong iron and tin drop ball at the end of each battery.
The three batteries are connected in series, and the induction line reaches the junction and the last positive pole to complete.
Before you click on this case together, put it all out and test it in the walkthrough and graph.
If you drop the drill bit, you may want to stick the package together with tape or glue to prevent it from falling off.
I\'m trying to make it all better and it seems like the 4 Series will produce better torque and speed as this gives the nominal 3. 7 x 4 = 14.
8 V, so the motor runs sweetly at this point.
The maximum voltage is 4x4. 2 = 16. 8V.
Tried it with 5 = 21 volts and motor purring.
These motors are hardyThe chargers that continue to show red flashing led, so it may be set to output a voltage of 18 volts, and devices connected to the side of one of the old batteries may stop some pre-ChargersDefine the voltage.
So I\'ll see if that\'s the case and update it.
This change to 4 requires a 4S version of the BMS, and I still have some to come, so if the charger is out of balance, you can\'t put the bag in the charger for too long.
You can buy it here for a few dollars.
12 am p should be OK, but it\'s a little bit more for the 20 Am p version.

GET IN TOUCH WITH Us
recommended articles
SERVICE INFO CENTER Knowledge
The Rise of BESS Battery Energy Storage Systems: A New Era of Commercial Power Management
As the energy transition accelerates, commercial energy storage systems are emerging as a key tool for businesses to optimize their energy usage. By monitoring real-time fluctuations in electricity supply and demand, these systems intelligently adjust charging and discharging strategies to effectively balance the cost pressures caused by peak-off-peak electricity price differentials. They provide customized solutions for scenarios such as manufacturing, logistics, and commercial complexes. Their modular architecture design not only meets the diverse needs of factory renovations and industrial park upgrades but also seamlessly integrates with distributed photovoltaic systems and charging stations, creating a convenient and efficient energy network.
What is the best solar battery?
Looking for the best battery for your solar energy system in 2025? This article compares lead-acid, lithium-ion, and flow batteries and explains why LiFePO₄ batteries from trusted manufacturers like GSL ENERGY are the top choice for residential, commercial, and industrial energy storage.
2025 Solar Battery Manufacturers in China: Leading the Global Energy Transition
By 2025, as the global energy structure transitions toward green and low-carbon solutions, Chinese solar battery manufacturers will continue to lead the global energy storage market through supply chain integration, policy support, and technological innovation. As one of China's leading lithium-ion solar battery manufacturers, GSL ENERGY leverages its robust R&D capabilities and automated production facilities to provide high-quality, cost-effective energy storage solutions to global customers. This article will focus on the advantageous trends in China's solar energy storage sector and delve into how GSL ENERGY has gained market recognition through innovative products and the successful implementation of global projects.
30~180kwh Mini Commercial and Industrial Energy Storage Solutions and Their Application Scenarios

GSL ENERGY's all-in-one energy storage system is specifically designed for small commercial and industrial applications, offering capacities ranging from 30kWh to 180kWh and compatible with 400V low-voltage connections. The system integrates batteries, PCS, EMS, power distribution, thermal management, and fire protection systems into a highly integrated solution, ensuring easy installation and conversion efficiency of up to 95%-97%. With its modular design, flexible scalability, and proprietary BMS management, the system is widely applied in office buildings, commercial complexes, hotels, schools, and other power-consuming scenarios, helping users achieve peak shaving, backup power supply, and intelligent energy management.
GSL ENERGY CEO and Technical Team Conduct On-Site Training in Poland for Residential and C&I Energy Storage Systems
On June 26, 2025, GSL ENERGY's CEO Jim and the technical team visited Poland to deliver a comprehensive, hands-on training on residential and commercial & industrial (C&I) energy storage systems. The session focused on real-world applications, system profitability, technical functions, and after-sales maintenance—empowering local partners with the knowledge to successfully deploy and scale GSL's ESS solutions. The event received enthusiastic participation and marked another milestone in GSL's global service commitment.
GSL-51-100 Rserver rack battery Shipped to Canada | 240 rack mount battery Support North America's Energy Transition
GSL Energy offers high-performance server rack battery and rack mount battery solutions designed for telecom, data centers, and energy storage applications. Our advanced 48V battery lithium systems provide long-lasting power, safety, and easy scalability. Ideal for both on-grid and off-grid scenarios, each rack mount battery backup unit is engineered for high-density storage, fast installation, and seamless integration with inverters and solar systems. Whether you're powering IT infrastructure or supporting renewable energy systems, GSL’s lithium batteries deliver dependable backup and energy efficiency.
How to find a truly capable solar battery company?​

Are you looking for a storage battery company to collaborate with? Are you concerned that the other party may not be a genuine manufacturer? Do you want to find a truly capable solar battery company to collaborate with? How can you find a genuine storage battery company? In this article, GSL ENERGY, a global lithium solar battery manufacturer, shares its insights on how to evaluate and select a truly capable solar battery company.
What is the difference between a PCS and an inverter?

In energy storage and renewable energy systems, PCS (power conversion system) and inverters are two core devices that are frequently mentioned yet often confused. Many people may not fully understand the functional differences, operating principles, or even the application scenarios of these two devices. In fact, while PCS and inverters share close technical connections, they also have fundamental differences.
no data
 Service Tel: +86-755-84515360
 Address: A602, Tianan Cyber Park, Huangge North Road, Longgang District, Shenzhen, China
GSL ENERGY - A leader of green energy provider in china since 2011

0086 13923720280

Solar energy storage battery manufacturer contact information
Contact us
whatsapp
Contact customer service
Contact us
whatsapp
cancel
Customer service
detect