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DIN75 (57540) 12V75AH DIN SMF CAR Battery

Product Description

Model: DIN75
BRAVA DIN75 (57540, 6-QW-75L-C) DIN series flooded maintenances-free car battery has very good low temperature starting ability,super long shelf life and maintenance free under normal situation.Those batteries are manufactured under DIN technology standard,less electrolyte is consumed,good anti-vibration capacity.It’s good used for car, tractor,mine-truck and the starting,lighting for the construction engineer vehicles,etc.

Voltage : 12v
Capacity : 75Ah
Size : 274*174*190*190mm
Weight : 18.0kg
Terminal : 1


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DIN75 Physical Specification (mm)

Model DIN75  (57540)
Nominal Voltage 12V
Nominal Capacity(20HR) 75Ah
Dimension Length 274±2mm(10.79inches)
Width 174±2mm(6.85inches)
Container Height 190±2mm(7.48inches)
Total Height(with Terminal) 190±2mm(7.48inches)
Weight With Acid Approx 18.0Kg(39.7lbs)
Acid 1.280±0.015g/cm (25ºC)
Standard Terminal 1
Cell layout 0
Hold-Down B13
Case Black-Material (PP)
Cover Black-Material (PP)
Handle Black-Material (PP)

Electrical Specification

Rated Capacity @20 hour rate(1.8A) 75Ah
Reserve Capacity (RC) [email protected] 125min
Cold Cranking Amps(CCA) @0 ºF (-18 ºC) 625A(EN)

Standard Terminal (mm)

Terminal Type D
Positive Negative
1 19.5 17.9
DIN75 57540 LAYOUT
DIN75 57540 LAYOUT
DIN75 57540 Discharge Characteristics
DIN75 57540 Discharge Characteristics


Wet Starter SMF Battery DIN Standard Series


Type Volt. C20 RC CCA(DIN) Overall Dimensions(mm) Cell Terminal Hold
Handles Wet
(V) (Ah) (Min) (-18℃) L W H TH Layout (Kg)
LBN3 56420 12 64 106 373 276 174 174 174 0 1 B13 TS1 16.2
57113 12 68 115 393 276 174 174 174 0 1 B13 TS1 16.7
LN3 56618 12 66 110 367 274 174 190 190 0 1 B13 TS3 16.8
57219 12 72 122 407 274 174 190 190 1 1 B13 TS3 17.5
57220 12 72 122 407 274 174 190 190 0 1 B13 TS3 17.5
57412 12 75 125 427 274 174 190 190 0 1 B13 TS3 18
57540 12 75 125 427 274 174 190 190 0 1 B13 TS3 18


1. How to extend the life of a SMF battery?

In order to increase the life of battery, it is necessary to monitor the battery performance constantly. Here are some tips to optimize the battery performance.
1. The SMF battery should be placed in well ventilated area to avoid high temperature environment. With each 10 degree rise in air temperature, the float life reduces to half. If the battery is installed in equipment, it is necessary to isolate it from heat generating components like transformer.
2. In order to prevent deep discharge, it is necessary to set the cut off voltage to 11.5 volts in 12 volt battery and 4.5 in 6 volt battery.
3. It is necessary to prevent no load battery drain. The additional components of the equipment such as sensors, displays and indicators consume power in the no load condition. So if the equipment is not provided with automatic charging, this power loss leads to deep discharge.

4. Boost cum float charging is suitable for SMF battery. If the power failure is frequent, the battery should be charged immediately to acquire full charge before the next power failure.

5. If there is any problem such as low backup time, battery heating, low terminal voltage even after continuous charging develops, the battery should be attended immediately.

6. If the equipment is not using for long time, it should be charged once in every week. If the battery is allowed to charge and discharge frequently, its life can be extended to 3-5 years.

2. What’s the SMF Battery?

Sealed Maintenance Free batteries are widely used where minimal maintenance and space requirements are the main considerations. In UPS systems, it is used because of its maintenance free and eco friendly features. SMF batteries do not require water and acid top up and are totally maintenance free. There is no water loss during the charge- discharge cycle and the battery works on the oxygen recombination principle. SMF battery is also called as Valve Regulated Lead Acid or VRLA battery.

CAR Battery: | Automobile | | Truck | | Marine/RV | | Motorcycle |



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