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# Preventing Corrosion & Cleaning Scanner Charge Bases
## Preventing Corrosion-
In all climates, but particularly in more humid climates, significant damage can be caused by corrosion to the charge port of the TC7x and MC33 charge bases. Over the course of a season, corrosion will build up on the pins of the charge port which in turn can cause degradation in charge ability and eventually irreversible damage if one or multiple pins degrade and break off. The main culprit to this corrosion is a wet scanner being placed in the port to charge. Condensation from the device can lead to the quick build-up of corrosion.
It's highly recommended by flaik to dry devices off prior to placing them in the charge cups. Keeping a towel near the charge station and training staff to wipe the devices down prior to docking them is the best practice.
## Clearing Corrosion from Charge Pins-
Please excuse the look of this toothbrush. It's main purpose is for cleaning corrosion, not your teeth!
91% Isopropyl rubbing alcohol, a toothbrush, and a soft cloth (shop towels work wonders!), are the best combination for maintaining a clean and efficient scanner charge port.
1. Spray/pour a small amount of 91% alcohol **directly on the cleaning utensil (toothbrush or other small brush).** We recommend a toothbrush since in and around the charge pins can be tight and a toothbrush is perfect for the first round of scrubbing since they are made for cleaning tight spaces.
2. **Gently** brush in and around the charge pins to clear away the main buildup of corrosion.
3. Spray/pour a small amount of 91% alcohol **directly on a soft cloth/shop towel.** Wipe any excess liquid from around the port and continue to gently clean up any corrosion in and around the pins.
4. Allow drying before placing any devices in the charge cup.
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