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Congratulations on your purchase of a Firefly Oasis Battery! 

The Firefly batteries use a patented carbon Microcell Foam grid structure that is highly resistant 

to sulfation and grid corrosion. They have the longest life of any lead acid battery used for deep 

cycling, even at extreme temperatures and operation at less than full charge. 

 

The Firefly batteries have many advantages over a traditional lead acid battery: 

 

Plate corrosion is inhibited. 

 

Plates are resistant to sulfation. 

 

The high plate porosity allows the electrolyte to react more efficiently. 

 

Receiving & Refreshing Charge 

 

Check the Individual battery voltages , It will be around 12.90 V for a fully charged 12V 

Battery G31 Battery and 4.20V for L16 battery. 

 

Freshening  charge  shall be carried out using a CCCV ( Constant current _Constant 

voltage charger as per OCV voltage observed on the batteries. 

 

In case the OCV  (Open circuit voltage) of the battery is less than 12.70 V , the G31 

battery needs to be charged @ 14.40 V (2.40 V / cell ) for 12 hrs. before commissioning. 

 

In case the OCV  (Open circuit voltage) of the battery is less than 4.10 V, the L16 battery 

4V 450 Ah block needs to be charged @ 4.80V (2.40 V / cell ) for 12 hrs. before 

commissioning 

 

Installation 

MOUNTING ORIENTATION 

 

 

Both the G31 and the L16 batteries can be installed in normal orientation or on their 

sides with the narrow side down. 

 
SPACE AND VENTILATION 
 

 

The batteries should be installed with a minimum of 1” between batteries to allow for 
proper ventilation and air circulation.  

 

 

There also needs to be adequate space in the compartment for ventilation. 

 

 

 

If possible, mount the batteries on low stand-offs to encourage air circulation around 

their bases. 

 
FOLLOW ALL ABYC INSTALLATION GUIDELINES 
 

 

The batteries should be fastened securely and restrained from movement in any 
direction.   

 

The positive terminals should be protected by a cover or boots. 

 

Refer to ABYC standards for more installation guidelines. 

Summary of Contents for Oasis G31

Page 1: ...Firefly User s Manual for the OASIS G31 the L16 March 2020 ...

Page 2: ... In case the OCV Open circuit voltage of the battery is less than 12 70 V the G31 battery needs to be charged 14 40 V 2 40 V cell for 12 hrs before commissioning In case the OCV Open circuit voltage of the battery is less than 4 10 V the L16 battery 4V 450 Ah block needs to be charged 4 80V 2 40 V cell for 12 hrs before commissioning Installation MOUNTING ORIENTATION Both the G31 and the L16 batte...

Page 3: ...rain on batteries in the battery bank SERIES INSTALLATION 4V L16 CONNECTION The battery will be shipped with the connection bar shown on the left This connects the 2 cells inside the module in series making the battery 4V and 450Ah For a 12V x 450Ah bank connect 3 x 4V L16 in series 3S For 24V x 450Ah connect 6 in series 6S For 900Ah x 12V it can be either 2P P in parallel x 3S or 3S x 2P For 900A...

Page 4: ...r and 20hr rate is 1 07 It is 1 12 for 6 5hr and 1 8hr rate Keep in mind that whatever Peukerts correction you use you will lose accuracy with extremely slow discharges Temperature Compensation If you have hardware that allows the user to enter a temperature coefficient use 24mV C for temperature compensation for a 12V battery 48mV for a 24V battery Contact us for higher voltages The temperature c...

Page 5: ...ue to the low impedance design Oasis batteries can tolerate in rush current levels as high as 3C 300A for a 100Ah battery Don t be afraid of deep cycling and fast recharging with Firefly batteries Operating Temperature The optimum operating temperature for a lead acid battery is 25 C 77 F As a rule of thumb every 8 10 C 14 18 F rise in temperature will cut the battery life in half Note that contin...

Page 6: ...ial Wear acid resistant clothing boots gloves face shield and proper respiratory protection Waste Disposal Information Please observe all federal local and state regulations regarding the disposal of lead acid batteries Precautions to be taken in Handling Storing and Transportation Store in cool dry area away from combustible materials store in well ventilated areas Other Precautions Do not charge...

Page 7: ...ng will not cause permanent damage However for better life cycle it is recommended to recharge the Firefly battery at least every 6 months FULLY CHARGED WHEN SHIPPED The Oasis will be shipped from the factory fully charged Some venting from the valves is possible when it arrives RECYCLING There is an existing infrastructure to recycle lead acid batteries Because Firefly s technology uses carbon it...

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