Rebuilding a Cordless Tool Battery – What You Need to Know

In my encounter I have discovered that most shoppers are not conscious that it is probable to rebuild the battery to their cordless tool. Rebuilding a battery has quite a few advantages more than obtaining new. Most typically than not, it cost a lot less to rebuild a battery than to purchase a new one. Also, the top quality of the cells used to rebuild a battery is ordinarily higher than these that had been initially utilized out of the factory. Lastly, environmentally speaking, just about every time a battery is rebuilt there is a single much less being disposed. Most each local Battery Shop delivers such a service and there are dozens of firms whom offer this service on line. Just before getting your battery rebuilt get to know the basics. A basic search of the World wide web will aid you find out the specifications of your cordless tool battery.


The three chemistries utilized in today’s cordless tools are Nickel-Cadmium (NiCd), Nickel-Metal Hydride (NiMH) and Lithium-Ion (Li-ion). The most typical is NiCd. The price to rebuild a battery will mostly be determined by its chemistry. Each and every of the chemistries has a unique set of traits and moving from NiCd to Li-ion has important price increases.

Realizing the chemistry essential to rebuild your battery is also vital for charging purposes. Ensure that værktøj will support the chemistry you strategy to use to rebuild your battery.


Voltage will figure out the quantity of cells utilised to rebuild your cordless tool battery. The most common cell made use of in today’s cordless tool batteries is the 1.2V Ni-Cd Sub C. To decide the quantity of cells to be employed to rebuild your battery divide the cordless tool battery’s Voltage by the Voltage of each cell. For example, an 18V battery would use 15 1.2V Sub C cells.

Milliampere-hour (mAh)

In a fundamental sense the mAh rating of a cell denotes the ‘run time’. The larger the rating the longer the battery will run just before needing to be recharged. Prevalent variety for mAh ratings is among 1200 mAh and 2700 mAh. Most cordless tool batteries are built using 1200 mAh or 1500 mAh cells. High-finish brand name tool batteries are frequently 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. Someone who is working with their tools in Do-It-Oneself projects may well be far less prepared to pay for a Ni-MH 2700 mAh rebuild than the contractor who utilizes their tools for everyday commercial applications.

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

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