Sigma NiCd Battery Repair Guide: Rebuild Sigma Battery

This comprehensive guide provides step-by-step instructions on how to repair and rebuild Sigma NiCd batteries, ensuring optimal performance and longevity. Whether you're a hobbyist, technician, or professional, this guide empowers you with the knowledge and techniques to successfully restore your Sigma battery to its former glory.

Understanding Sigma NiCd Batteries

Sigma NiCd batteries are rechargeable batteries commonly used in various electronic devices, including cordless power tools, portable radios, and medical equipment. These batteries consist of multiple cells, each containing positive and negative plates immersed in an electrolyte solution. During charging, electricity flows through the cells, converting the active material on the plates into a charged state. When the battery is discharged, the chemical reaction reverses, releasing energy.

Causes of Sigma NiCd Battery Failure

Sigma NiCd batteries can fail due to various factors, including:

• Overcharging: Charging the battery beyond its recommended voltage can cause the electrolyte to boil, damaging the plates and reducing capacity.
• Overdischarging: Discharging the battery below its minimum voltage can cause the plates to become sulfated, resulting in reduced capacity and potential short circuits.
• Aging: NiCd batteries naturally lose capacity over time as the active material degrades.
• Mechanical damage: Physical shocks or vibrations can cause the plates to break or become misaligned.

Tools and Materials Required

To repair and rebuild Sigma NiCd batteries, you will need the following tools and materials:

• Multimeter
• Soldering iron and solder
• Wire strippers and crimpers
• Replacement battery cells
• Battery electrolyte solution
• Safety glasses and gloves

Step-by-Step Repair Guide

The following steps provide a detailed guide on how to repair and rebuild Sigma NiCd batteries:

1. Safety Precautions

Before beginning any work, ensure that you wear safety glasses and gloves to protect yourself from potential hazards such as battery acid and electrical shock.

2. Disassembly and Inspection

Carefully disassemble the battery pack to access the individual cells. Inspect each cell for any damage or corrosion. If any cells show signs of damage, they must be replaced.

3. Testing Cells

Use a multimeter to test the voltage of each cell. Cells that have a voltage significantly lower than the others are likely suspect and should be replaced.

4. Cell Replacement

If any cells need to be replaced, carefully desolder the old cells and solder in the new cells. Ensure that the polarity is correctly maintained.

5. Electrolyte Replacement

If necessary, drain the old electrolyte solution from the battery pack and replace it with fresh electrolyte solution. Follow the manufacturer's instructions for the correct electrolyte type and concentration.

6. Assembly and Testing

Reassemble the battery pack and connect it to a charger. Charge the battery according to the manufacturer's instructions. After charging, test the battery's voltage and capacity using a multimeter to ensure that it meets specifications.

Conclusion

By following the steps outlined in this guide, you can successfully repair and rebuild Sigma NiCd batteries, restoring their performance and extending their lifespan. Whether you're a hobbyist, a technician, or a professional, this guide provides the knowledge and techniques to ensure that your Sigma battery continues to power your devices reliably.

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same technique for all your nicad batteries. do not try the technique to any other type of battery. if you are looking for a new replacement battery,or a whole new cordless tool because your old batteries won't hold or take a charge, then we have a solution for your problem. do you have a dead or weak cordless power tool battery? looking for a cheap, effective way to repair them?


considering the price of a new nicad battery at $50 - $80, the cost to replace two them would be $100 - $160
you can fix following problems using our guide.

* dead battery or battery not holding a charge
* battery is weak even after a full charge
* battery works for a minute and then loses power
* battery is stored for long time and won't charge
* battery has no power at all.

use our guide to.

* give a new life to your dead nicd batteries.
* get full power from your dead nicd batteries.
* your nicd batteries will take a charge and hold it longer.
* your nicd batteries will run like new again. about 99 success rate!


with our technique, you can fix all sigmas, and all products with nicd/nicad rechargeable battery. electric toothbrushes, cordless drills, cordless shavers, cordless saws, flashlights, cordless hammer drills, cellular and portable phones, laptops, cellular, mobile phone, mp3 players, camcorders, digital cameras, cordless
jig saws, and a whole of tools rely on rechargeable batteries.

don't throw away any sigma battery, firestorm or versapak battery that does not hold a charge or does not give you the power you need, you can get new life from your battery or device that contains nicd batteries with our simple technique.

give a new life to your nicd battery by our step-by-step guide:

you can fix these shorted crystal dendrites by "revitalization through vaporization of dendrites (rvd) process".

we have a simple technique that transformed a totally dead battery into a like new performing battery that tested at 100 of it's charge capacity. you won't find a better price anywhere else for such a complete and detailed instructions and full illustrations easy enough for even a novice to follow. this technology is used successfully by thousands of satisfied customers.



*learn the technique once and repeat it over and over on as many batteries as you like.
*give a new life to all your nicd batteries used in ,electric toothbrushes, cordless drills, cordless shavers, cordless saws, flashlights, cordless hammer drills, cellular and portable phones,
cordless jig saws etc.

*give a new life to sealed batteries like the firestorm and versapak in seconds.

*our step by step guide will enable you to resurrect rechargeable nicd batteries to their full potential, so they will hold a charge.

*same technique for all your nicd batteries.



no disassembly is required for 95 batteries. however for badly abused batteries you will need access to individual cells within the battery, therefore some disassembly is required. we will show you in details how to disassemble, resurrect and assemble them again.
we will show you a step-by-step method that works and really works great!

after this technique
your nicd rechargeable battery will hold a full charge.

your battery will reach its full power & run time potential.

tools you need!

in order to safely perform the technique, you need
gloves, safety goggles, electric wire (lamp cord thickness or larger), volt meter and voltage source (dc power source; it could be your car battery, other tool batteries, welder or battery charger).

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