Diagnosis
Seal failure. The O-ring gasket on the bottom cap is damaged, missing, or not screwed on tightly.
How to Fix It
Unscrew the bottom cap. Remove the battery. Inspect the small black O-ring seated in the cap's groove. If cracked or flattened, contact Quip customer service for a replacement cap. Dry all components thoroughly before reassembly.
If That Didn't Work
The main body seal may be compromised. Do not store the handle upright in a cup of water. Always store it on its included mount or horizontally to keep the cap above water level.
Heads Up
Corroded contacts will prevent proper connection even with a new battery. Clean contacts gently with isopropyl alcohol and a cotton swab. Severe corrosion requires handle replacement.