The Ammonite Accu Type 9 Battery was created to be a low profile, low Wh rated and lightweight travel unit mainly for travelling divers flying to dive destinations. 

Due to the risks associated with lithium batteries, transportation is globally subject to strict rules which differ from country to country and from modality to modality. Stricter requirements apply to air freight than to sea freight or road transport. Moreover, the regulations are constantly changing.

This is the reason why Ammonite created theAmmonite Battery - Accu Type 9 with a watt-hour rating lower than 100Wh as operator approval is not required this battery pack to be carried by the passenger.

Ammonite Accu Type 9 is a 9Ah Li-Ion battery encased in a robust hard anodised canister. It will provide 2.5-4 hours of burn time to the Ammonite light head, 1.55-3 hours for the head and 9.35-16 hours for the  head.

This listing is for battery only and does not include Ammonite charger, light cable or light head.

Ammonite System is modular

Due to the modular design concept, you have the possibility to configure your umbilical light set regarding your needs.


All Ammonite umbilical lights, cables, batteries and heating batteries are equipped with the same chinch-type connector.


So when one of the parts wears out, or you would simply want to upgrade it there are no obstacles to doing so.


Modularity also affects the convenience of use and safety. For example, you can change the broken cable for a new one on the diving spot without sending it to the service centre.

Accu Type 9 burntimes

Universal and safe source of power supply for all Ammonite System light heads

Connecting the head and separate battery means you can have a small torch that produces lots of bright light with extensive burn times.

The Ammonite Accu Type 9 contains a lithium-ion (Li-Ion) battery pack, completely free of the so-called lazy battery effect and protected against overvoltage.

Durability, reliability and size

The casing of the Accu Type 9 is hard anodised aluminium which can withstand the harshest of conditions.

Ammonite System Accu batteries are some of the smallest and lightest batteries available on the market.

Easy of assembly

In the standard version, the batteries are fitted with a webbing fixed loop fastening to the hip belt. The batteries can also be equipped with alternative fastening systems or .

Ammonite Accu Type 9 is safe for transport

The transport of lithium batteries is subject to international regulation, which can differ if the batteries are transported by air, sea or road.

All Ammonite lithium-ion (Li-Ion) batteries comply with UN Transportation Testing (UN/DOT 38.3) for Lithium Cells and Batteries and ensure the safety of your lithium batteries during shipping.