AAA Battery Adapter for Universal Battery Chargers
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Raises AAA battery so that the charger spring pressured terminal plates creates a more stable connection.
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Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution
Most spring loaded terminal chargers have difficulty creating a stable contact with AAA batteries due to the small diameter of the AAA battery. Typically you would need to hold the battery higher and let the spring terminals put pressure on the ends and suspend the battery in the air to charge. Found this to be annoying and often a slight bump to the charger would send the AAA batteries flying.
The adapter lifts and holds the AAA battery in the charger so that the battery is securely held in place for the entire charging duration. Fits universal chargers that can hold 21700 batteries.
There are four variations.
10.3mm inner diameter is for a tighter battery fit
1.8mm wall is for a more sturdier adapter