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Batteries, cells


Batteries Ni-Cd (nickel-cadmium), Ni-MH (nickel-metal hydride), Li-Ion (lithium-ion) and LiFePO4 (lithium-iron-phosphate) are used to supply emergency lighting power supply.
As standard, the battery leads are 20 cm outside the battery outline and are terminated with a N-type connector, adapted to the plug mounted in HYBRYD emergency power supply systems.


• Suitable for use in high temperature (-5° – +60°C)
• Selected packages are also available in thermostated version, which allows them to be used at reduced temperatures (from -20°C)
• Many ways of packing
• High current efficiency
• Low self-discharge
• Long life
• No memory effect (Li-Ion, LiFePO4)
• Fast charging process


Cell temperature during charging0°C – +55°C0°C – +55°C0°C – +60°C0°C – +60°C
Cell temperature during operation-5° – +60°C-5° – +60°C-20° – +60°C-20° – +60°C

Ni-Cd and Ni-MH battery obtain full electrical parameters after three complete charge and discharge cycles.
With the fulfillment of proper operating conditions, battery capacity measured by a 0.1C discharge current should not fall below 60% of its rated capacity within a period of 48 months from the date of manufacture.
The number of charge / discharge cycles during this time period should not exceed 300.
The battery-powered system controls the battery voltage cut-off to protect against deep discharge.


The batteries are made up of individual battery cells connected in series (L). Single cell voltage (N) is 1,2V (for Ni-Cd, Ni-MH), 3,7V (for Li-Ion) and 3,2V (for LiFePO4). The battery voltage is: L x N.
Depending on the type and power of the lighting source and the required lighting efficiency, HYBRYD emergency power supply systems are powered by a battery consisting of 2, 3,
4, 5 and 7 cells.

The battery capacity depends on the execution of the system’s current and the required emergency operation time.
The mostly used capacities are shown in the table below:

4,0Ah4,0Ah 2,0Ah


As standard, the batteries are packing in series or in parallel. If a different way of battery cells packing is required, it is recommended to contact HYBRYD.
Ni-Cd batteries of PAR and PAS type are mounted using clamps or cable ties. Ni-MH batteries of PAR, PAS, PAP, PAK, PAC, PAD type are mounted using cable ties.

The most commonly used types of packing:

PAO type – (Ni-Cd, Ni-MH; 3,6-8,4V) battery packed in series, can be equipped with clamps

PAS type – (Ni-Cd, Ni-MH; 3,6-8,4V) battery packed in series, without clamp

PAR type – (Ni-Cd, Ni-MH; 3,6-8,4V Li-Ion; 3,7V LiFePO4; 3,2V) battery packed in parallel

PAP type – (Ni-Cd, Ni-MH; 3,6V) 2 cells located in parallel and the third placed on them

PAK type – (Ni-Cd, Ni-MH; 6,0V) 3 cells located in parallel and two placed on them

PAC type – (Ni-Cd, Ni-MH; 4,8V) 4 cells arranged in a cuboid

PAD type – (Ni-Cd, Ni-MH; 8,4V) double cuboid, arranged with 7 cells

PAJ type – (Li-Ion; 3,7V LiFePO4; 6,4V)

PAE type – (Ni-Cd, Ni-MH; 7,2V)

PAL type – (Ni-Cd, Ni-MH; 4,8V; 7,2V)

PAT type – (Ni-Cd, Ni-MH; 12,0V)

PAB type – (Ni-Cd, Ni-MH; 3,6V; 6,0V; 8,4V)

PAN type – (Ni-Cd, Ni-MH; 3,6V; 6,0V; 8,4V)

PAW type – (Ni-MH; 4,8V)