Dive Computer BatteriesUpdated 2 years ago
One thing to consider when buying a dive computer is the type of battery that it uses. There are two main types; Replaceable and Rechargeable.
Replaceable batteries are the most common and have been used in dive computers since their introduction to the marketplace. They tend to be fairly standard lithium-ion batteries found in many types of watches and small electronic devices. Depending on the usage, they usually last 1-2 years before changing.
To get them changed, we would recommend taking them into an official service centre to pressure test them after the battery change.
Dive Computer Battery Replacement
Rechargeable batteries have only started to appear in dive computers in the last couple of years. As for battery technology advances, these will likely become more common as they offer several advantages over the replaceable ones.
The main advantage is that they can be recharged (Obviously..), which means that you'll no longer need to take them into service centres to have the battery changed, representing a more economical running cost, although the initial cost tends to be a little higher.
The one thing to be aware of is keeping them charged on extended dive trips in remote locations. However, the battery life tends to be quite good and can usually be recharged by USB.