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Lithium Batteries for Rebreathers

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Lithium cells are among the most dense energy storage chemistries in general use for primary batteries and offer the advantage of very long service life in most applications. The lithium energy discharge curve is also very flat, providing a consistently high voltage throughout the life of the battery. Compared with most other types of batteries, lithium batteries are lighter weight, have a wider operating temperature range (making them excellent for cold-water and ice diving), and have a much longer 10 year shelf life. The hermetically sealed construction of lithium cells means they are very unlikely to leak. Lithium cells are environmentally friendly, offering easy disposal since they do not contain heavy metals found in most batteries. Good news for travelers: All the lithium batteries we sell contain less than 2 grams of equivalent lithium content (ELC) and are not restricted by TSA.


Saft 3.6V AA Lithium Battery

Today

Product Manual (PDF)

> Saft 3.6V AA Lithium Battery

The Saft LS14500 lithium 3.6V cell is an excellent choice for the Juergensen Marine HammerHead™ electronics, and also for the Delta P VR3 dive computer. Saft is the world leader in the manufacture of primary lithium batteries. The Saft LS14500 is the only battery recommended by Dive Rite for their O2ptima™ rebreather. Rated at 2.45 Ah, this battery is carefully matched to the power requirements of the Hammerhead and the VR3, and offers the best performance under the widest conditions with the longest service life at the most cost effective price. The LS14500 is UL-recognized,and it's R6/AA size has no transport restrictions.

Note the instructions in the VR and Hammerhead manuals regarding battery replacement.


Fujitsu 6V CR-P2 Lithium Battery

Today

> Fujitsu 6V CR-P2 Lithium Battery

The Fujitsu CR-P2 lithium 6V cell is the battery recommended by Ambient Pressure Diving for their Inspiration and Evolution rebreathers. Quoting from the APD manuals: "The preferred brand is Fujitsu Lithium 6 volt, type CR-P2. In use this battery has proven to have a greater capacity than other brands, giving proper solenoid operation within the voltage warnings provided by the electronics and for longer life."   The Fujitsu brand CR-P2 is uncommon, but we have gone directly to the manufacturer in order to offer a great price.


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Battery Service Life in Rebreathers

The most significant pulse current demands are the firing of the oxygen-injection solenoid and the illumination of the backlight. The diver physiology and skill with managing the rebreather, as well as the actual dive profile, significantly affect how often the solenoid fires. Dive conditions and individual diver preferences determine how often and how long the backlight is illuminated. The electronics also have a continuous current demand required to monitor wet sensors and switches. For whatever time the battery is in the rebreather, the electronics continues to drain the battery even when the unit is out of the water and shutdown. These factors, along with the enourmous differences in quality between brands of batteries, result in wide variation of operational battery life among rebreather divers.


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Pricing for Rebreather Consumables

Image Item SKU Description Ship Status Everyday
Great Price

Saft 3.6V AA Lithium Battery, each  LS14500 Saft 3.6V AA Lithium Battery, each Today $7.95
Saft 3.6V AA Lithium Battery, Tray of 10 (ten)  LS14500-10 Saft 3.6V AA Lithium Battery, Tray of 10 (ten) Today $69.00
Fujitsu 6V CR-P2 Lithium Battery, Each  CRP2 Fujitsu 6V CR-P2 Lithium Battery, Each Today $9.95
Fujitsu 6V CR-P2 Lithium Battery, Box of 10 (ten)  CRP2-10 Fujitsu 6V CR-P2 Lithium Battery, Box of 10 (ten) Today $80.00

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