Rolls Battery Technical Support

General 15

• What is Amp Hour Capacity?
• How Does Temperature Impact Battery Efficiency and Lifespan?
• What are Hydrocaps?
• What is the Best Battery for Off-Grid Systems?
• How to Test Battery and Cell Health?

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Types of Batteries 4

• What is a AGM Battery?
• What is a LFP Battery?
• What is a Flooded Lead-Acid Battery?
• What is a GEL Battery?

LFP 12

• How Do I Recycle Rolls LFP Batteries?
• What is Balancing?
• What Cable Connections Should I Use?
• How does a BMS Protect a Rolls LFP Battery?
• Can I Connect Rolls LFP Batteries Together in Series/Parallel?

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Battery Charging - Flooded Lead-Acid 6

• Calculating Proper Charge Settings for Rolls Flooded Lead-Acid Batteries
• Charge Efficiency - Flooded Lead-Acid Battery
• Pulse Charging - Flooded Lead-Acid Models
• State of Charge - Flooded Lead-Acid Batteries
• Low Voltage Disconnect (LVD / LVCO)

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Battery Charging - AGM 4

• Battery Charging - AGM
• Charge Efficiency - AGM Batteries
• Delta-Q Charging Algorithms - Rolls VRLA AGM
• AGM Discharge Characteristics

Battery Charging - GEL 2

• Battery Charging - GEL
• Charge Efficiency / Factor - OPzV GEL Batteries

Battery Charging - General 1

• End / Return Amps

General 13

• Specific Gravity Temperature Correction
• Activating Dry Charged Batteries Instructions
• Hydrogen Off-Gas & Ventilation
• Calculating Hydrogen Concentration For Proper Ventilation
• Recommended Torque Settings - Flooded, AGM, GEL

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LFP 7

• Rolls LFP Drop-in Battery Installation
• Terminal Torque - LFP
• Rolls LFP ESS - Connecting to Deye Inverters
• Rolls LFP ESS - Connecting with Victron Inverters
• Rolls LFP ESS - Connecting to Voltronic Inverters

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Maintenance 18

• Measuring Specific Gravity
• Battery Sulfation
• Corrective Equalization & Instructions
• Voltage Readings & State of Charge
• Electrolyte Characteristics

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Storage 4

• Storage - Flooded Battery
• Seasonal Properties - Flooded Battery Preparation, Storage & Equalizations
• Storage - AGM Battery
• Storage - LFP

Flooded Lead Acid Batteries 3

• Cycle Life vs. Depth of Discharge
• Temperature vs. Capacity - Flooded Lead-Acid Batteries
• Voltages vs. Depth of Discharge - Series 4000

Product Information 6

• AGM Terminals
• Factory Seconds ("BLEM") Stock
• Product Date Codes
• Advanced NAM
• Terminal Sizes

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Flooded, AGM & GEL 1

• Battery User Manual - Flooded, AGM & GEL

LFP 2

• Rolls S48-100LFP ESS Battery Operating Manual
• Battery User Manual - LFP Drop-in

Railroad & Diesel Starter 1

• Battery User Manual - Railroad & Diesel Starter

Rolls Battery Warranty 3

• Warranty Claim Form & Battery Test Sheet
• Rolls Battery Manufacturer Warranty - Flooded, AGM & GEL Models
• Rolls Battery Manufacturer Warranty - LFP Models