Cressi Leonardo Giotto Donatello Michelangelo Battery kit
High-quality lithium battery CR2430 3V
Original O-Ring
Silicone Grease for O-Ring
Applications:
The Battery Kit is shipped with an original manufacturer O-Ring which is important for the security of your dive computer from leaking water.
All items are brand NEW, sealed, and factory approved.
Cressi Leonardo / Giotto / Donatello Battery Replacement — What’s Included
One kit for the whole Cressi Leonardo family: a fresh CR2430 battery, a genuine replacement O-ring and silicone grease. It fits the Cressi Leonardo, Giotto, Donatello and Michelangelo dive computers — all use the same CR2430 battery.
How to Change the Cressi Leonardo Battery
1. Unscrew the battery cover on the back with a coin.
2. Remove the old CR2430 and O-ring — note the battery-holder tab.
3. Fit the new O-ring with a little grease, seat the fresh CR2430 (keep the holder tab in place, + side up) and screw the cover back until snug. No tools needed.
Cressi Leonardo Battery — FAQ
What battery does the Cressi Leonardo (and Giotto / Donatello / Michelangelo) use?
A single CR2430 3V coin cell — included in this kit.
How long does the battery last?
Around 2–3 years of typical recreational diving. A dim display or low-battery warning means it is time to replace.
Do I need to replace the O-ring too?
Yes — always fit the new O-ring (included) with grease so the battery cover stays waterproof.
