Rebuilding a Cordless Tool Battery – What You Need to have to Know

In my knowledge I have discovered that most consumers are not conscious that it is possible to rebuild the battery to their cordless tool. Rebuilding a battery has numerous positive aspects more than acquiring new. Most often than not, it expense considerably much less to rebuild a battery than to obtain a new one. Also, the high quality of the cells employed to rebuild a battery is ordinarily greater than these that had been initially applied out of the factory. Lastly, environmentally speaking, just about every time a battery is rebuilt there is a single significantly less being disposed. Most just about every local Battery Shop provides such a service and there are dozens of providers whom give this service on line. Before possessing your battery rebuilt get to know the basics. A simple search of the Internet will aid you find out the specifications of your cordless tool battery.


The 3 chemistries made use of in today’s cordless tools are Nickel-Cadmium (NiCd), Nickel-Metal Hydride (NiMH) and Lithium-Ion (Li-ion). The most widespread is NiCd. The price to rebuild a battery will mostly be determined by its chemistry. Every single of the chemistries has a different set of characteristics and moving from NiCd to Li-ion has considerable expense increases.

Knowing the chemistry needed to rebuild your battery is also crucial for charging purposes. Make værktøj that your charger will assistance the chemistry you program to use to rebuild your battery.


Voltage will ascertain the amount of cells applied to rebuild your cordless tool battery. The most typical cell made use of in today’s cordless tool batteries is the 1.2V Ni-Cd Sub C. To ascertain the amount of cells to be utilised to rebuild your battery divide the cordless tool battery’s Voltage by the Voltage of each and every cell. For instance, an 18V battery would use 15 1.2V Sub C cells.

Milliampere-hour (mAh)

In a simple sense the mAh rating of a cell denotes the ‘run time’. The larger the rating the longer the battery will run ahead of needing to be recharged. Prevalent range for mAh ratings is among 1200 mAh and 2700 mAh. Most cordless tool batteries are built employing 1200 mAh or 1500 mAh cells. High-finish brand name tool batteries are commonly constructed with 2200 mAh or 2400 mAh cells.


How you use your cordless tool will also help ascertain how a lot you are willing to invest in a new battery. A person who is making use of their tools in Do-It-Yourself projects might be far much less willing to pay for a Ni-MH 2700 mAh rebuild than the contractor who makes use of their tools for daily commercial applications.

Knowing the fundamentals of battery rebuilding will make you an informed customer. Obtain a service provider who is prepared to present a warranty on their perform and 1 willing to give printed final results of the post-make prime, charge and/or test of your newly rebuilt battery.

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