EG4 Electronics EG4 LL 12V 400Ah
The EG4 Electronics EG4 LL 12V 400Ah is a battery pack with a nominal voltage of 12.8V, a continuous discharge of 200 A and a weight of 98.1 lbs. (44.5 kg).
Last updated: 26 October 2026
Battery and charging
- Voltage
- 12.8V
- Capacity
- 400Ah
- Rated charge cycles
- more than 7,000 deep charge and discharge cycles
- Battery water resistance
- IP20
- Maximum continuous discharge
- 200A
- Series and parallel limit
- 16
- Maximum charge current, as the maker labels it
- 200A
- BMS charge cut-off voltage
- 15.0V
- Charging voltage
- 14.0V (+/-0.2V)
- Float voltage
- 13.5V (+/-0.2V)
“VOLTAGE 12.8V CAPACITY 400Ah”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“VOLTAGE 12.8V CAPACITY 400Ah”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“knowing our batteries are designed to last for more than 7,000 deep charge and discharge cycles”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“STORAGE RANGE -4°F – 122°F (-20°C – 50°C) INGRESS PROTECTION IP20”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“DISCHARGING CURRENT 200A (Max. Continuous)”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“MAXIMUM MODULES IN PARALLEL 16”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“CHARGING CURRENT 200A (Max. Continuous)”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“MODULE VOLTAGE PROTECTION 15.0V 1s 13.8V”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“CHARGING VOLTAGE (BULK/ABSORB) 14.0V (+/-0.2V)”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“FLOAT 13.5V (+/-0.2V) SOC CUTOFF 20%*”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
Battery care and safety
- Where its BMS cuts off
- 9.6V
- Temperatures it may be charged in
- 32°F – 113°F (0°C – 45°C)
- Temperatures it may be run in
- -4°F – 122°F (-20°C – 50°C)
- Temperatures it may be stored in
- -4°F – 122°F (-20°C – 50°C)
“MODULE VOLTAGE PROTECTION 9.6V 1s 12.0V”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“CHARGING RANGE 32°F – 113°F (0°C – 45°C)”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“DISCHARGING RANGE -4°F – 122°F (-20°C – 50°C)”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“STORAGE RANGE -4°F – 122°F (-20°C – 50°C)”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
Size and fit
- Overall dimensions
- 6.1 in×19 in×20.2 in (15.5 cm×48.2 cm×51.3 cm)
- Stated weight
- 98.1 lbs. (44.5 kg)
“DIMENSION (H×W×D) 6.1 in×19 in×20.2 in (15.5 cm×48.2 cm×51.3 cm)”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
“DIMENSION (H×W×D) 6.1 in×19 in×20.2 in (15.5 cm×48.2 cm×51.3 cm) WEIGHT 98.1 lbs. (44.5 kg)”
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
Sources
- Archived document
Source: eg4electronics.com/wp-content/uploads/2024/04/EG4-LL-12V-Spec-Sheet.pdf
Retrieved October 9, 2026