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Rolls R Series Operating Manual

Drop-in lfp battery
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ROLLS R-SERIES &
S-SERIES DROP-IN LFP
BATTERY OPERATING
MANUAL
Recommended safety, installation, operation
and troubleshooting procedures for Rolls
R-Series and S-Series 12V, 24V, 36V, and
48V LFP (Lithium Iron Phosphate) batteries.

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Summary of Contents for Rolls R Series

  • Page 1 ROLLS R-SERIES & S-SERIES DROP-IN LFP BATTERY OPERATING MANUAL Recommended safety, installation, operation and troubleshooting procedures for Rolls R-Series and S-Series 12V, 24V, 36V, and 48V LFP (Lithium Iron Phosphate) batteries.
  • Page 2 RENEWABLE ENERGY MARINE MOTIVE POWER...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Rolls R-Series and S-Series LFP Batteries Storage, Installation, Terminal Torque Cable Connections BMS Protection Summary Connection Limits, Connecting in Series, Example Series Configurations Connecting in Parallel Battery Voltage - Connecting In Series/Parallel Bluetooth/App Connectivity Dashboard & Support Screens, Additional S-Series Features...

  • Page 4: Rolls R-Series And S-Series Lfp Batteries

    Rolls Battery products. This manual provides detailed instructions for safe and proper installation, operation, and care of Rolls R-Series and S-Series drop-in LFP battery models. Please read carefully to clearly understand the operating instructions and any potential safety risks prior to installation.
  • Page 5 This document is NOT APPLICABLE to the following models 48V ESS LFP Models 24V & 48V ESS LFP Models (S48-100LFP ESS) (S24-2800LFP ESS and S48-6650LFP ESS) Nominal voltage of an LFP battery differs from equivalent lead-acid batteries. LFP Battery Lead-Acid Battery (Cell Voltage = 3.2V) (Cell Voltage = 2.0V) Battery Nominal Voltage...
  • Page 6 • Never charge a battery with a deformed or bulging case. • Do not expose a Rolls drop-in LFP 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 flame.
  • Page 7 Rolls drop-in LFP batteries self-discharge and should be charged, at minimum, once per year, even when in distributor stock or storage. For temperatures above 40°C (104°F) the battery should be charged every 3 months. Do not store Rolls R-Series & S-Series drop-in LFP batteries at temperatures above 45°C (113°F).

  • Page 8: Cable Connections

    Terminal connections should be torqued to the recommended specification in TERMINAL TORQUE. Although Rolls R-Series and S-Series drop-in LFP batteries do not require maintenance such as cell inspection & watering, routine inspection of cabling and terminal connections should be performed semi-annually.

  • Page 9: Bms Protection Summary

    BMS PROTECTION SUMMARY Rolls R-Series drop-in LFP 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 for the internal cells. The switch architecture of the BMS allows charge and discharge to be stopped independently.
  • Page 10 1 (48V System) 6 (no series connection) NOTE: Rolls R-Series & S-Series drop-in models cannot be mixed. Batteries should only be combined in the same capacity, and voltage, from the same product line. CONNECTING IN SERIES Rolls R-Series and S-Series 12V and 24V LFP batteries may be combined in series strings to achieve higher operating voltages by connecting the positive terminal of one battery to the negative terminal of the next battery.

  • Page 11: Connecting In Parallel

    CONNECTING IN PARALLEL You may combine Rolls R-Series or S-Series drop-in LFP batteries of the same model together in up to four (4) parallel strings to increase system capacity. If no series connections are made, up to six (6) batteries of the same model may be connected in parallel.

  • Page 12: Battery Voltage - Connecting In Series/Parallel

    Although the BMS provides over-voltage protection to each cell, developing a charge imbalance between batteries is still possible. Rolls recommends disconnecting and fully charging each battery individually once per year if 1 or 2 parallel strings is used, or every 6 months in systems with 3 or 4 parallel strings.

  • Page 13: Bluetooth/App Connectivity

    BLUETOOTH/APP CONNECTIVITY Waking up the Battery This is also discussed above in Waking up the Battery. If you have just received your battery, it may have entered a low power sleep mode during transit. In this state, the Bluetooth will not broadcast a signal your device can connect to.
  • Page 14 Dashboard & Support Screens The main Dashboard screen has a display of estimated state-of- charge (SOC), the connected battery (device ID?), battery voltage, current, internal cell temperature, and any active fault codes. Using the app, you can submit a support ticket directly to our service team, you will receive email confirmation and be contacted by us regarding your issue.
  • Page 15 Turn on display (SOC and voltage) and Bluetooth search. Short Press Put battery into or out of sleep/storage mode. Long Press (3 Seconds) FUSE ACCESS S-SERIES FUSE REFERENCE Ratings Part Number Rolls S-Series Current Voltage Littelfuse Generic S24-50 LFP 100A 142.5631.6102 (M5)
  • Page 16 The recommended and maximum continuous charge currents are specified on the product label. Rolls R-Series and S-Series drop-in LFP batteries may cycle or be stored in a partial state of charge (PSOC). Rolls R-Series and S-Series drop-in LFP 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.
  • Page 17 CHARGING GUIDELINES Rolls R-Series and S-Series drop-in LFP batteries may 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 18: Charging Source: Lead-Acid Battery Charger

    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 S-Series drop-in LFP models if the charger is properly configured to operate within recommended charge current and voltage limits.
  • Page 19 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 20 When programming an inverter/charger or charge controller equipment using a 3-stage charge sequence (2-stage with an additional “float voltage” after the charge is terminated), the following charging parameters should be programmed to properly charge Rolls 12V & 24V R-Series and S-Series LFP batteries:...

  • Page 21: Recycling

    Due to the chemistry of LFP cells, these batteries cannot accept high charge current at low operating temperatures without cell damage and permanent capacity loss. Rolls R-Series drop-in LFP batteries may be safely charged between 0°C to 55°C (32°F to 131°F). However, because cycle wear is accelerated below 10°C (50 °F) the charge should be limited to 0.2C (20% of battery capacity) for optimal longevity.

  • Page 22: Lfp Glossary

    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.
  • Page 23 CYCLE LIFE The total energy throughput of a battery, defined in terms of the amount of equivalent charge/ discharge cycles it can withstand before its effective capacity is reduced to a certain amount, usually 80% of original/rated capacity. LFP (LITHIUM IRON PHOSPHATE) LFP, or Lithium Iron Phosphate is a specific type of Lithium-ion battery chemistry.
  • Page 24 APPENDIX A: S-SERIES BMS QUICK ERROR CODE REFERENCE CODE DESCRIPTION ACTION Other/Unknown Refer to App or contact support@rollsbattery.com. Over Voltage Discharge battery. Under Voltage Charge battery. Over Temperature Battery is too hot. Consider ambient temperature, insulation, and spacing between batteries. Under Temperature Battery is too cold.
  • Page 25 APPENDIX B: BMS PROTECTION SUMMARY REFERENCE RESET CODE PROTECTION COMMENTS METHOD Cell/Pack Charge Automatic reset If occurring more than Overvoltage Interruption after time delay 3 times in 2 minutes, or discharge. discharge is required. Cell/Pack Discharge Automatic reset If occurring more than Undervoltage Interruption after time delay...

  • Page 26: Contacts

    CONTACTS Surrette Battery Company Ltd. PO Box 2020, 58 Lisgar Street 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 27 NOTES: ver. 1.2 08/23...
  • Page 28 ROLLSBATTERY.COM...

This manual is also suitable for:

S seriesS48-100 lfp essS24-2800 lfp essS48-6650 lfp essS24-50 lfpS12-100 lfp ... Show all

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