Design and specifications
Page 35
Battery management
system (BMS)
Integral
Safety devices
Overvoltage, undervoltage, overtemperature, short-
circuit
Application/wiring
12 V installation
Parallel circuit possible
Series circuit not allowed
Battery designation
compliant with DIN EN
IFpR33/71[12P4S]M/-10+60/95
IFpR33/71[18P4S]M/-10+60/95
2.3.2
Charging properties
EFOY Li 70 – 12 V
EFOY Li 105 – 12 V
Charging end voltage
14.6 V
Open-circuit voltage
13.2 to 13.8 V
Max. charging current
(< five minutes)
70 A
105 A
Max. continuous charging
current
(10–30 °C)
1
35 A
52 A
Charging duration at 20 °C
and max. continuous
charging current
< 2 h
Charging characteristic
CCCV/IU
No. of charging cycles
Approx. 3,000 cycles at 80% DOD
Storage
Examine the state of charge at least every three months
and charge if necessary
2.3.3
Discharge properties
EFOY Li 70 – 12 V
EFOY Li 105 – 12 V
Deep discharge protection
< 10.5 V
Battery enters deep discharge protection mode
Recommended minimum
voltage
11 V
Continuous discharge
current
70 A
105 A