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Summary of Contents for Rolls R Series
- Page 1 R-SERIES 12V & 24V LFP BATTERY OPERATING MANUAL Recommended safety, installation, operation & troubleshooting procedures for Rolls R-Series 12V & 24V LFP (Lithium Iron Phosphate) batteries.
- Page 2 RENEWABLE ENERGY MARINE MOTIVE POWER...
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Page 3: Table Of Contents
TABLE OF CONTENTS Rolls R-Series 12V & 24V Lithium Iron Phosphate (LFP) Batteries Storage, Installation, Cable Connections, Terminal Torque Battery Management System (BMS) Protection Summary Connections, Connecting In Series, Example Series Configurations Connecting In Parallel Battery Voltage - Connecting In Series/Parallel... -
Page 4: Rolls R-Series 12V & 24V Lithium Iron Phosphate (Lfp) Batteries
NOTE: This manual offers installation, charging and troubleshooting guidance for Rolls R-Series 12V & 24V R-Series lithium batteries R12-_ _ _LFP & R24-_ _ _LFP. See Rolls S24-2800LFP & S48-6650LFP ESS Battery Operating Manual for usage instructions specific to Rolls S24-2800LFP ESS and S48-6650LFP ESS (Energy Storage System) models. - Page 5 • Never charge a battery with a deformed or bulging case. • Do not expose a Rolls R-Series battery to heat more than 60°C (140°F) during operation, and do not store for extended periods of time above 45°C (113°F). Do not incinerate or expose to open flames.
- Page 6 Rolls R-Series LFP batteries do self-discharge and should be charged once per year, at minimum when stored for extended periods. For temperatures above 40°C (104°F) the battery should be charged every 3 months. Do not store Rolls 12V & 24V R-Series LFP batteries at temperatures above 45°C (113°F).
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Page 7: Battery Management System (Bms) Protection Summary
BATTERY MANAGEMENT SYSTEM (BMS) PROTECTION SUMMARY Rolls R-Series batteries include a built-in battery management system (BMS) which offers protection in conditions where the battery voltage, current or operating/cell temperature may be unsafe or damaging. The switch architecture of the BMS allows charge and discharge to be stopped independently. - Page 8 2 (48V System) CONNECTING IN SERIES Rolls 12V and 24V LFP batteries can be combined in series strings (maximum four (4) 12V batteries and two (2) 24V for 48-volts) to achieve higher operating voltages by connecting the positive terminal of one battery to the negative terminal of the next battery.
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Page 9: Connecting In Parallel
CONNECTING IN PARALLEL You may combine Rolls 12V R-Series batteries together in up to four (4) parallel strings to increase battery bank capacity. Refer to the example below showing eight (8) 12V R-Series batteries connected in a 48V configuration; four (4) connected in series and two (2) parallel strings (4S2P). -
Page 10: Battery Voltage - Connecting In Series/Parallel
Rolls R-Series batteries may cycle or be stored in a partial state-of-charge (PSOC). Rolls R-Series batteries should be cycled from 0% depth of discharge (DoD) or 100% state of charge (SOC), to 80% DOD or 20% SOC for optimal cycle life. To prevent over-discharge, the BMS will disconnect the battery when the low voltage cut-off is reached, protecting the battery from overdischarge. -
Page 11: Charging Guidelines
R-Series model by cell and BMS technology. This is provided on the product label. CHARGING GUIDELINES Rolls R-Series Batteries can be charged in a 1, 2, or 3-Stage charge profile, shown below. The specifics and recommended setpoints for these charge regimes are explained in this section, with the recommended charge profile being a 2-Stage charge. -
Page 12: 1-Stage Charging - Cc (Constant Current)
1-STAGE CHARGING – CC (CONSTANT CURRENT) When charging with a single-stage constant current charger, charge at the recommended charge current, by operating temperature, until the battery reaches its termination voltage. 1-STAGE CHARGE PROFILE CHARGE CURRENT & PARAMETERS RECOMMENDED ≤ 0.2C at 0-10°C (32-50°F) CHARGE CURRENT ≤... -
Page 13: 2-Stage Charging - Cc/Cv (Constant Current/Constant Voltage)
2-STAGE CHARGING – CC/CV (CONSTANT CURRENT/CONSTANT VOLTAGE) When charging with a two-stage constant current/constant voltage (CC/CV) charger, charge at the recommended charge current, by operating temperature, until the battery reaches the “absorption” voltage or constant voltage (CV) limit. The charger then holds the battery at CV until the charge current decreases to ≤0.05C (termination current). -
Page 14: 3-Stage Charging - Legacy Lead-Acid Systems, Inverter/Charger Hardware
VOLTAGE Temperature Compensation: If the inverter/charger or charge controller uses temperature compensation this should be turned off when charging Rolls R-Series models. Turn off the temperature compensation settings and disconnect the sensor to ensure the correct voltage regulation from the charging device. -
Page 15: Charging Source: Lead-Acid Battery Charger
BATTERY CHARGER Customers may choose to replace lead-acid batteries with lithium models. Most lead-acid battery chargers may be used to charge Rolls R-Series models if the charger is properly configured to operate within recommended charge current and voltage limits. The pre-programmed voltage settings for AGM or OPzV GEL models may be in line with LFP charge voltage settings and can sometimes be used if direct voltage control is not possible for your charger. -
Page 16: Recycling
BMS (BATTERY MANAGEMENT SYSTEM) The BMS, or Battery Management System, is an electronic device which protects the cells inside a battery. The BMS used in Rolls R-Series batteries protects them from unsafe voltage, current, and temperature conditions, and balances cells for optimal pack performance. - Page 17 A “cycle” is a somewhat arbitrary term used to describe the process of discharging a fully charged battery down to a particular state of discharge. For Rolls R-Series Batteries, a cycle is defined as 90% depth of discharge, or going from full charge down to 10% state-of-charge.
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Page 18: Contacts
CONTACTS Surrette Battery Company Ltd. PO Box 2020, 1 Station Road Springhill, Nova Scotia, Canada B0M 1X0 PHONE: 1 902 597 3767 (local) 1 800 681 9914 (toll free) FAX: 1 902 597 8447 (local) 1 800 681 9915 (toll free) CUSTOMER SERVICE: 1 902 597 4005 customerservice@rollsbattery.com... - Page 19 NOTES: ver. 1.1 12/21...
- Page 20 ROLLSBATTERY.COM...
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