Behind-the-ear processors use small, high-powered, zinc-air-style batteries similar to those used in hearing aids. Your cochlear implant team will be able to suggest the best battery type for your processor.

Make sure to list your cochlear implant processor under your contents insurance so you are covered for such incidents as a loss or breakage. There are manufacturer warranties in place for limited times for faults, but not loss losses or for breaks.

Batteries for the behind-the-ear model of sound processor typically last several days, whilst the rechargeable batteries used in the bodyworn processor normally last for one day. Generally if you are in noisy environments your sound processor works harder and therefore requires more battery power.

For swimming, you will need to remove the external component when you swim, much like you would have to remove a hearing aid. The internal part of the cochlear implant is not affected by water. However, you can swim with your processor on if you use the Aqua Kit Accessory in any water-based activity to a depth of 4 metres. It is a single-use plastic enclosure that completely seals in your processing unit, cable, and coil. It is designed for use with rechargeable batteries only. You can use the  in saltwater, a soapy bath/shower, chlorinated pools—anything that is safe for skin contact.

For scuba divers, the internal implant is validated to withstand pressure at a depth of 25 metres (82 feet) underwater, but use of the Aqua Accessory is not recommended for Scuba diving as depths may exceed 4 metres. It is recommended that you check with your surgeon or clinician before participating in a dive, because there may be other medical conditions that you will need to consider.

For contact sports,scuba you should wear a helmet to protect your equipment. Boxing and other aggressive sports are discouraged.

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