Renewable Energy SLR Battery Series

SLR Batteries “Advanced Nano-Carbon Deep Cycle battery”
Over a century of our experience, we newly developed “SLR” Advanced Deep cycle VRLA battery with our Nano-Carbon technology. It is designed for high cycle life requirement of energy storage system and manufactured in Japan according to the most rigorous Japanese quality control standards to deliver extraordinary performance and exceptional long service life.


SLR Size and Terminal SLR Charateristic



SLR1000-2 Battery Charging Efficiency

Recommended normal charging is three stage constant current.

  • Bulk:                      0.2CA (200A) MAX, Constant Current Charge up to 2.4VPC
  • Absorption:        0.1CA (100A) MAX, Constant Voltage Charge 60-90 mins
  • Float Application: Not Applicable
    • Equalization:      0.025CA (25A) MAX Constant Voltage Charge 2.8VPC for 3 hours
      • Recommended equalization charge frequency (whichever comes first):
        • Once per month or,
        • When discharge amount reaches 3.5 – 5 times of rated capacity or
        • Longer if individual cell voltages are monitored

Maximum DOD: 70%DOD/30%SOC
Recommended DOD: 50%DOD/50%SOC
Example Charge and Discharge Cycle:  Most Chargers have charging current limits on average 120A

        • Discharge condition: DOD70% (0.1CA*6h)
        • Charging condition:
          • Normal charge:
            • 0.1CA for 6h, estimated 90%SOC
          • Equalization charge:
            •  0.025CA for 2.5h after charged (to 104% of rated capacity)

Efficiency of discharge and charge:

      • Approximately 88% at normal charge condition
      • Approximately 83% at equalization charge condition.


SLR 1000-2PDF
SLR 500-2PDF
SLR 50-12PDF