Rebuild Batteries   is pleased to announce the addition of D, C & AA sizes to our Signature Sub C MILSPEC locking Rebuild Kits and Acccessories.

Instructional Videos

Rebuild Batteries Not sure of which kit you need then Click here for easy to follow HOW TO Video

Say yes to rebuilding and no to clogging scarce land fills.

Rebuilding your battery saves 82% of your carbon foot print.

NiCad Battery Rebuild Kit

NiCAD Rchargeable Batteries

NiMH Battery Rebuild Kits


Cordless Battery Rebuild Kits

Power tools Repair Kits

OEM Discontinued Battery Rebuild Kits



About Our Product

Battrx gives you everything needed to repair your weak rechargeable batteries to new strengths. Rebuild NiCad and NiMH batteries with no solder or special tools involved at 1/3 the cost

Battery Kits allow you to rebuild your rechargeable sub C batteries without the use of heat or solder, they utilize new star tab technology.

No Heat

No Solder

100% Mechanical Connections

Customer Testimonial

Bought a kit a couple of months ago and just finished rebuilding my 8th in the contractor pack. Got rid of one bucket of old batteries and got them in the field where they belong.

Customer Testimonial

I use my tools everyday and went through 19.2v batteries quickly.The set I put in has outlasted all my new batteries. I am upgrading to the higher amps models and expect the same results.

Customer Testimonial

One of my customers came in bragging about his tools whih were now, according to him running stronger than ever. He told me about Barrtx and I’ve never looked back. These kits allowed me to be in the rebuild business without a large initial outlay’ They always ship in a day and there’s never a backorder.I’m a customer for life.

Customer Testimonial

Can’t find nimh for my snap on impacts anywhere but here and will not use anything else”

Customer Testimonial

With a proper good working charger and following the recommended methods of charging of these batteries they have lasted four years and still going. I use BatterRX batteries in my portable power tools every day in the HVAC business and got twice the life from these batteries compared to the OEM batteries.

Why is the Battrx® battery rebuild service different and easier?

Most other battery rebuild services use the solder tab option to rebuild rechargeable batteries. However, the amount of heat required for soldering is actually damaging the internal chemistry of the battery. Battrx® has engineered and manufactured premium quality batteries with tabs that are built in to the design–not soldered in as a second thought. Therefore, our batteries remain intact and are high-drain, high-current.

Also, some battery rebuild services requires that you send your battery pack to them, which takes about 4-7 days. Then it takes them some more time to rebuild your battery. Then it takes another 4-7 days for them to ship it back to you. That adds up to about 3 weeks time without your battery! Our system, on the other hand, does not require any back and forth shipping (which is bad for the environment, anyway) because you fix your battery YOURSELF, using our tools and simple-to-understand DIY instructions.

Contact Us

Want more info about our Products? Need help on choosing the Right Battery? Just send us your Message. We will get back to you.


Rebuilding a battery sounds complicated. However, when you use the Battrx® DIY battery rebuild kit it becomes a quite simple process. You can DIY on site. Below, our battery experts answer some FAQ’s about the Battrx® system, which is truly one-of-a-kind and is quite different from most other rebuild services that use solder tab options. If there is something that you need More Clarifications, Just ask our battery experts.


Our Nickel Cadmium batteries are 2100 MAH and our Nickel Metal Hydride batteries are 3200 MAh.

100% mechanical connections BUILT IN at manufacture.

No Heat, No Solder

Rechargeable battery rebuilding end to end

Parallel in Series

Extended Ring Connector

Cell To Cell

Wire tab to Cell

Wire tab to Cell Animation

Tab stud to Cell

Assembled in USA

Proudly assembled, stocked and shipped in the USA for unparalleled customer service

Assembled in USA

Customer Comments Questions and Solutions

Major L.B. Hardimon battery rebuild-min

Major L.B. Hardimon

Pelican U W Rebuild Batteries-min

Pelican U/W

Brad Benyas Battery Rebuild-min

Brad Benyas

Brad Benyas Rebuild Batteries-min

Brad Benyas

Sargent Richard Jackson battery rebuil-min

Sargent Richard

General Contractor battery rebuild-min

Contractor Glen Roche