Datasheet

Battery Model: RT S 4,2
Part Number: 802 250 000 888 2
Nominal Voltage: 12 volts
NSN: 6140 01 457 5296
Description: High power, sealed lead acid, engine starting
battery
Battery Model: RT R 4,2
Part Number: 803 251 000 888 2
Nominal Voltage: 12 volts
NSN: 6140 01 475 9357
Description: High power, sealed lead acid, engine starting
battery
Physical Characteristics:
Plate Design: High purity lead-tin alloy. Wound cell configuration utilizing proprietary
SPIRALCELL
®
technology.
Electrolyte: Sulfuric acid, H
2
SO
4
Case: Polypropylene
Color: Case: Dark Gray
Cover: “OPTIMA“ Red
Group Size: BCI: 34
Standard Metric
Length:
Width:
Height:
Weight:
10”
6.875”
7.813”
37.9 lb.
254 mm
175 mm
200 mm (height at the top of the terminals)
17.2 kg
Terminal Configuration: SAE / BCI automotive.
Performance Data:
Open Circuit Voltage (fully charged):
12.8 volts
Internal Resistance (fully charged):
0.0030 ohms
Capacity:
50 Ah (C/20)
Reserve Capacity:
BCI: 100 minutes
(25 amp discharge, 80°F (26.7°C), to 10.5 volts cut-off)
Power:
CCA (EN -18°C): 8
15 amps
MCA (BCI 0°
C): 1000 amps
OPTIMA® RedTop S 4,2 & R 4,2