- 12 V 55 AH Lead-acid Batteries with Long Life of 12 Floating
Charging Conditions,L277mm x W105mm x H222mm
The HRESYS DF (Duration Front) series VRLA batteries is especially
designed for telecommunication
with 12+ years float design life. By combining the newlydeveloped
paste formula with up-to-date AGM
structures, the series meet latest IEC, British and Telcordia
standards. Front Access connection and
centralized venting system of DF series for fast, safety
installation and maintenance.
-12 years long float life design
-Increased recharge efficiency due to advanced pasting formula
-International Standards Compliance, i.e. IEC, EN, BS, CE etc
-Batteries are mainly working at standby status but also for cyclic
use with not very frequent cycles
-Long cycle life thanks to thick plates with Tin Calcium alloy
-Front Access Terminal design easy for inter-block connection
-Low self-discharge rate enables long shelf life
-Batteries are normally installed in standard 19” and 23” cabinet
-Wide temperature range operating between -20°C and +60°C
-Excellent high rate discharge performance -Cross-wall welding
between each cell, this construction
made internal resistance very low -Superior grid radiates style
design; raise the high rate discharge
performance. -Patent paste technology -Copper core cable, copper
bar as optional
- Front Terminal Construction
| Nominal Voltage (V) | 12 (6 cells per unit) |
| Nominal Capacity (25 C) | 55 Ah @ 10HR-rate (to 1.80Vpc) |
| Dimension (mm) | L277mm x W105mm x H222mm |
| Approx. Weight | 17.8 kg (39.2 lbs) |
| Terminal Type | Female Copper Insert M6 (torque: 6~8N.m) |
| Internal Resistance | Approx. 0.008 Ohm (fully charged @ 20°C) |
| Max. Charge Current | 14 A |
| Max. Discharge Current (5S) | 550 A |
| Short Circuit Current | 1500 A |
| Self Discharge | Approx. 2.5% per month @ 20℃ |
| Ambient Temperature | Discharge: -20~60℃
Charge: -20~55℃
Storage: -20~45℃ |
| Float Charge Voltage | 13.5V/block @25℃(-3mV/ cell/ C) |
| Сycle Use Charge Voltage | 14.1V/block @25℃ |
| Container Material | ABS UL ( 94-V0 optional) |
- Charging and discharging characteristics
