Review on 🔌 MG Chemicals 8331D Conductive Conductivity 14G by Richard Sallah

Silver epoxy makes it easy to change Norelco shaver battery without using soldering equipment, but an epoxy heat gun may be required for quick curing. Norelco shavers are not designed to replace batteries. Soldering the old battery and soldering the new battery requires access to the hidden backside of the board where the initial soldering was done. If you turn the board over to access these solder points, you can easily damage the thin copper foil electrical connections that extend from the board. Also, to solder, you'll need a soldering iron, flux, solder, a desoldering pump, and maybe a magnifier so you can see what you're doing and not damage the circuit board components. With silver epoxy, all of the above problems boil down to: (1) Leave the circuit board intact. (2) Partially pull the old battery out of the plastic holder to expose the connector posts. (3) Cut off the old battery connector strips in the area of attachment to the old battery end plate. These strips make connections to the original solder points somewhere on the board. (4) Measure and cut the new battery terminal strips to the correct length, leaving just enough length for the new terminals to touch and overlap the old terminals. (5) Mix the epoxy. Wear gloves. (I used less than 1/5 of the supplied epoxy, less than 1mL from each syringe). (6) Use a needle or other small, narrow tool to apply the silver epoxy to the old connectors first. (7) Insert the new battery into the plastic holder, making sure the new and old connectors are touching. (8) Apply more epoxy to connect the two terminals of the old battery to the two terminals of the new battery. (9) Use the heat gun for 10-15 minutes to cure the epoxy. The official quick set temperature is 90°C for 12 minutes or 125°C (above the boiling point of water) for 7 minutes. I didn't want to use my oven to bake the epoxy which risked food contamination. I just twisted the heat gun so my hand felt hot enough without burning it. Preparation for cleaning took 30 minutes. Having never done this before, it took me several hours to take the Norelco razor apart and figure out exactly what to do. Different models from Norelco differ in anatomy. The general principle is to epoxy silver the old and new battery terminals without desoldering or soldering the battery terminals to their original factory locations which are often in a very awkward and difficult to access location on the circuit board. .At the time of writing this review, 10/27/2021, replacing a Norelco battery is hardly cost effective compared to buying a new shaver. In my case, the silver epoxy is $49 and the replacement battery is $13, for a total of $62. A new wet and dry razor from Norelco costs about $130. A non-waterproof Norcelco can be as low as $30. Mine is waterproof so I saved about $68 and avoided sending my 25 year old Norelco to the landfill.