RENOGY Pro Series

Before Getting Started

The user manual provides important operation and maintenance instructions for the Renogy Pro Series 12.8V 100Ah Smart Lithium Iron Phosphate Battery (hereinafter referred to as battery). Read the user manual carefully before operation and save it for future reference. Failure to observe the instructions or precautions in the user manual can result in electrical shock, serious injury, or death, or can damage the battery, potentially rendering it inoperable.

• Renogy ensures the accuracy, sufficiency, and applicability of information in the user manual at the time of printing due to continual product improvements.
• Renogy assumes no responsibility or liability for personal and property losses, whether directly or indirectly, caused by the user's failure to install and use the product in compliance with the user manual.
• Renogy is not responsible or liable for any failure, damage, or injury resulting from repair attempts by unqualified personnel, improper installation, or inappropriate operation.
• Illustrations in the user manual are for demonstration purposes only. Details may appear slightly different depending on product revision and market region.
• Renogy reserves the right to change the information in the user manual without notice. For the latest user manual, visit renogy.com.

Disclaimer

Renogy Pro Series 12.8V 100Ah Smart Lithium Iron Phosphate Battery User Manual © 2023 Renogy. All rights reserved.

RENOGY and RENOGY are registered trademarks of Renogy.

• All information in the user manual is subject to copyright and other intellectual property rights of Renogy and its licensors. The user manual may not be modified, reproduced, or copied, in whole or in part, without the prior written permissions of Renogy and its licensors.
• The registered trademarks in the user manual are the property of Renogy. Unauthorized use of the trademarks is strictly prohibited.

Online Manual: Access the user manual online.

Symbols Used

The following symbols are used throughout the user manual to highlight important information:

• WARNING: Indicates a potentially hazardous condition that could result in personal injury or death.
• CAUTION: Indicates a critical procedure for safe and proper installation and operation.
• NOTE: Indicates an important step or tip for optimal performance.

Introduction

The Renogy Pro Series 12.8V 100Ah Smart Lithium Iron Phosphate Battery adopts a proprietary battery housing material in a smaller size for RV applications. Weighing only half of lead-acid counterparts, the battery can be safely discharged to 100% Depth of Discharge (DOD), delivering twice the energy. Manufactured with automotive-grade battery cells, it features the highest safety standards and an extended 5000+ cycle life. The smart Battery Management System (BMS) provides comprehensive protection.

Key Features

• Unparalleled Performance: Greater energy density, deeper discharge capability, higher round-trip efficiency, and faster charging speed in a smaller size.
• Uncompromising Quality: Exceptional lifespan with over 5000 cycles (80% DOD), continuous charge/discharge current of 100A, and wide operating temperatures.
• Reliable Protection Mechanisms: Sturdy internal structure for RV use, with over 60 protections and alarms via the smart BMS.
• Real-time Monitoring Through DC Home App: Easily access battery information anytime via the DC Home App.
• Intelligent Self-Heating Function & More Stable Performance: Built-in heater operates automatically at low temperatures to maintain charging performance and increase battery lifespan.
• Active Safety Protection with Self-Control Fuse: Prevents battery overcurrent and overvoltage failures.
• Best-in-Class Capacity and Easy Expansion: Provides over 105Ah capacity, supporting up to 8 batteries in parallel for a maximum of 12.8V 800Ah (10.24kWh).

SKU

What's In the Box?

The package includes:

• Renogy Pro Series 12.8V 100Ah Smart Lithium Iron Phosphate Battery x 1
• User Manual x 1

Included accessories:

• Terminal Bolts: M8*1.25*12 mm x 2
• Long Terminal Bolts: M8*1.25*16 mm x 2

? Make sure that all accessories are complete and free of any signs of damage.

Required Tools & Accessories

• Wrench (17/32 in / 13mm)
• Battery Adapter Cables x 2 (5/16 in / M8)
• Insulating Gloves
• Multimeter

? Prior to installing and configuring the battery, prepare the recommended tools, components, and accessories.

? For how to size battery adapter cables, refer to "How to Size Battery Adapter Cables?" in this manual.

Get to Know Smart Lithium Iron Phosphate Battery

Top View

The top of the battery features:

• Positive Terminal (M8)
• Negative Terminal (M8)
• Lift Handles

Bottom View

The bottom of the battery features:

• Mounting Holes (for Battery Fix Bracket)

Dimensions

Dimensions: 10.6 in (268 mm) Length x 7.6 in (193 mm) Width x 8.1 in (205 mm) Height

Weight: 26.9 lbs. (12.2 kg)

? Dimension tolerance: ±0.2 in (0.5 mm)

How to Size Battery Adapter Cables?

Use appropriately sized Battery Adapter Cables (sold separately) based on expected load. Refer to the table below for copper cable ampacities with different gauge sizes.

? The above values are from the NEC Table 310.17 for copper cables rated at 194°F (90°C), operating at an ambient temperature of no more than 86°F (30°C). Cables longer than 13 feet (4000 mm) may require thicker gauge wires to prevent excessive voltage drop in undersized wiring.

Secure the Battery (Optional)

Securing the battery prevents damage from loose cables and bumps.

Recommended Components & Tools

• Battery Fix Bracket (with 8 M4*10 mm Fix Bolts)
• Mounting Screws x 8
• Phillips Screwdriver (#2)

? Recommended components marked with "*" are available on renogy.com.

? Alternative mounting methods are allowed to meet specific application requirements. Choose proper mounting screws for your installation site (e.g., self-tapping screws for wooden walls).

⚠️ Do not install batteries sideways or upside down.

Step 1: Install the battery fix bracket through the mounting holes on the battery.

(Diagram shows bracket being attached to battery mounting holes with fix bolts)

Step 2: Mount the battery on a flat surface.

(Diagrams show left and right side mounting of the battery to a surface using mounting screws, with torque specification 14.16 in-lbs (1.6 N·m))

Step 1. Plan a Mounting Site

For optimal battery performance, install the battery in a clean, cool, and dry location, free from water, oil, or dirt. Accumulation of such materials can lead to current leakage, self-discharge, and short-circuiting.

(Diagram shows a battery in an enclosed space with vents and airflow indicated. Icons are displayed for environmental conditions.)

• Environmental Icons: KEEP DRY, FRAGILE, VENTILATION
• Temperature Ranges:
• Charge: -4°F to 131°F (-20°C to 55°C)
• Discharge: -4°F to 140°F (-20°C to 60°C)
• Humidity: 10%-95%

? Sufficient airflow must be provided to prevent excessive heat build-up and minimize temperature variation between connected batteries.

? This user manual uses a battery as an example to illustrate installation.

Step 2. Wear Insulating Gloves

(Illustration shows a pair of insulating gloves.)

Step 3. Check the Battery

Inspect the battery for any visible damage, including cracks, dents, deformation, and other abnormalities. Ensure all connector contacts are clean, dry, and free of corrosion.

⚠️ Do not touch the exposed electrolyte or powder if the battery is damaged.

⚠️ If uncovered electrolyte or powder contacts your skin or eyes, flush it out immediately with plenty of clean water and seek medical attention.

Step 4. Install Battery Terminals

(Diagram shows terminal bolts, spring washer, flat washer, and battery adapter cable being attached to the battery terminal.)

Ensure the cable lug and the top surface of the terminal are in contact. Place the washers on top of the lug. Do not place washers between the battery terminal and the cable lug to avoid high resistance and excessive heating.

⚠️ Avoid short-circuiting the battery terminals to prevent irreversible damage to the system and battery caused by current bursts.

⚠️ Verify polarity before wiring to avoid irreversible battery damage due to polarity reversal.

⚠️ Do not touch the positive and negative terminals of the battery with your hands.

? To ensure safe and reliable operation, follow the recommended torque specifications (70.8 in-lbs / 8 N·m) when securing cable connections. Over-tightening can cause terminal breakage; loose connections can lead to terminal meltdown or fire. Use Long Terminal Bolts for multiple cable lugs on a single terminal.

Step 5. Connect the Battery to Other Devices

⚠️ Use circuit breakers, fuses, or disconnects appropriately sized by a certified electrician, licensed installers, or regional code authorities to protect all electrical equipment.

For a Single Battery

(Diagram shows a single battery connected via a fuse to an inverter, DC-DC charger, DC distribution panel, and charge controller.)

For Batteries in Parallel

(Diagram shows multiple batteries connected in parallel, with cables running to a battery fuse, inverter, DC-DC charger, DC distribution panel, and charge controller.)

How to Connect Renogy Pro Batteries in Parallel?

Calculate Voltage and Current in Parallel Connections

When connecting batteries in parallel, the system voltage remains the same, while the system current is the sum of the individual battery currents.

(Diagram illustrates four 12.8V 100Ah batteries connected in parallel, showing positive to positive and negative to negative connections.)

? This battery is designed for parallel use only.

? Use long terminal bolts (M8 * 1.25 * 16 mm) and the recommended torque of 70.8 in·lbs (8 N·m).

⚠️ Do not connect batteries with different chemistries, rated capacities, nominal voltages, brands, or models in parallel or series, as this can cause damage and pose safety risks.

⚠️ Avoid connecting batteries purchased more than six months apart, as performance may degrade.

? Ensure cables between connected batteries are of equal length for balanced operation.

Balance Batteries Prior to Connection

Before connecting batteries in parallel, balance them to reduce voltage differences and optimize performance. Follow these steps:

Step 1: Charge each battery individually to its full capacity using a suitable charger.

(Diagram shows a battery being charged via a DC-DC charger and charge controller.)

Step 2: Use a voltmeter to measure the voltage of each battery. Aim for a voltage difference of less than 0.1V between batteries.

(Illustration shows a voltmeter displaying 13.5V.)

Step 3: Connect all batteries in parallel and allow them to rest together for 12 to 24 hours.

(Diagram shows batteries connected in parallel with a timer indicating 12-24h.)

? It is recommended to periodically rebalance battery voltages every six months. Slight voltage differences can occur over time due to battery chemistry, capacity, temperature, and usage patterns.

Parallel Connection – Installation Steps

Suitable busbars can be used in parallel connections to handle high currents and distribute electrical power efficiently.

? The cable connection methods provided are for reference only; the optimal approach may vary based on specific situations, cable size, equipment, and environmental conditions.

(Diagrams show two batteries connected in parallel (2P) and eight batteries connected in parallel (8P) with corresponding system voltage and energy capacities.)

Battery Cell Balancing

The battery uses a bypass circuit to maintain balance between cell groups. Each cell group is connected with a bypass resistor and switch in parallel. During charging, if the highest-voltage cell group reaches the set balancing voltage and the difference between highest and lowest voltage exceeds a threshold, the switch closes, shunting charge current through the resistor until the voltage difference decreases. Cell balancing is performed only during charging to avoid excessive energy loss.

Remote, 24/7 Monitoring via DC Home App

Step 1: Download the DC Home app. Log in with your account.

(Illustration shows QR codes for downloading the app on Google Play and the App Store, along with app interface screenshots.)

Step 2: Pair the battery with the DC Home app. Monitor and modify battery parameters via the app.

(Illustration shows the process of pairing a battery with the app on a smartphone.)

Charging/Discharging Parameter Settings

Charge Parameters

Discharge Parameters

Battery Charging and Discharging Logic

The battery may be received at a partial state of charge (SOC). It is crucial to fully charge the battery before its initial use. If the battery shuts off due to low SOC, disconnect it from loads and charge it promptly to prevent irreversible damage. Follow the manual for proper charging and usage to ensure optimal performance and longevity.

Charging Logic

The standard charging process involves charging at a constant current of 50A until the voltage reaches 14.4V, followed by charging at a constant voltage of 14.4V with tapering current. Charging is complete when the current drops below 5A (tail current). The process typically takes 2.5 hours and requires temperatures between 32°F (0°C) and 131°F (55°C). Leaving the battery on float helps balance cells without damage.

(Graph shows current and voltage curves during charging: Constant Current phase followed by Constant Voltage phase.)

• Lithium batteries are compatible with MPPT charge controllers, AC chargers, and DC-DC chargers. Set charge voltage, boost voltage, or bulk voltage at 14.4V (±0.2V).
• ⚠️ Do not overcharge or overdischarge the battery.
• ⚠️ Do not discharge the battery at high temperatures above 140°F (60°C).
• ⚠️ Only charge with a compatible lithium iron phosphate battery charger or charge controller.
• ⚠️ Do not exceed the maximum continuous charge current (100A).

Discharging Logic

During standard discharging, the battery discharges at a constant current of 50A until the voltage drops to 10V. For safe discharging, the battery temperature should be between -4°F (-20°C) and 131°F (60°C).

• ? Pair the battery with discharge equipment featuring a low voltage disconnect (LVD) function for safe and optimal usage.
• ⚠️ Do not connect large loads when the battery is running low.
• ⚠️ Do not exceed the maximum continuous discharge current (100A).

How to Estimate the Battery SOC?

The SOC values are estimated based on the open circuit voltage after the battery rests for 30 minutes (not charging or discharging).

? This table is for reference only; slight variations in battery voltage may occur.

Self-Heating Function

The self-heating function requires a stable charge current greater than 4A per battery in a parallel bank. It activates automatically when the battery temperature drops below 41°F (5°C) and stops when it rises above 50°F (10°C). The temperature rise rate is approximately 51.8°F (11°C) per hour at 55W (4A).

Battery Management System

The smart BMS has over 60 fault alarms and protections. Below are common faults and protections:

Troubleshooting

? For further assistance, contact Renogy technical support service at renogy.com/contact-us.

Specifications

General

Operation Parameters

Maintenance & Storage

Inspection

Perform regular inspections:

• Examine the battery's external appearance, housing, and terminals for cleanliness, dryness, and freedom from corrosion.
• Check battery cables and connections. Replace damaged cables and tighten loose connections.

? Corrosion around terminals can cause increased resistance and poor contact. Applying insulation grease to terminals is recommended to form a moisture-resistant seal and protect against corrosion.

Cleaning

Clean the battery at regular intervals:

• Disconnect the battery from the system.
• Clear leaves and debris from the battery.
• Clean the battery with a soft, lint-free cloth. Dampen with water or mild soap and water if extremely dirty.
• Dry the battery with a soft, lint-free cloth.
• Keep the area around the battery clean.
• Reconnect the battery to the system.

Checking Voltage

Periodically check battery voltage to assess health. If the battery cannot be activated with a charge/discharge current greater than 1A, or is activated at an open circuit voltage below 10V, it may be severely overdischarged. Stop using the battery until the fault is corrected and it can be charged.

Storage

Follow these tips for proper storage:

• Charge the battery to 30% to 50% SOC.
• Disconnect the battery from the system.
• Store in a well-ventilated, dry, clean area between -13°F (-25°C) and 149°F (65°C).
• Do not expose to direct sunlight, moisture, or precipitation.
• Handle carefully to avoid sharp impacts or extreme pressure.
• Charge at least once every 3-6 months to prevent overdischarge.
• Fully charge the battery when taking it out of storage.

Important Safety Instructions

Renogy accepts no liability for damage caused by:

• Force majeure (fire, typhoon, flood, earthquake, war, terrorism).
• Intentional or accidental misuse, abuse, neglect, improper maintenance, or use under abnormal conditions.
• Improper installation, operation, or malfunction of peripheral devices.
• Contamination with hazardous substances or radiation.
• Alterations to the product without written consent from the manufacturer.

General Safety

• Wear proper protective equipment and use insulated tools during installation and operation.
• Do not wear jewelry or other metal objects when working on or around the battery.
• Keep the battery out of the reach of children.
• Do not dispose of the battery as household waste. Comply with local, state, and federal laws and regulations, and use recycling channels.
• In case of fire, use an FM-200 or CO2 fire extinguisher.
• Do not expose the battery to flammable or harsh chemicals or vapors.
• Clean the battery regularly.
• It is recommended that all cables should not exceed 10 meters to prevent excessive voltage drop.
• Cable specifications in the quick guide account for a critical, less than 3% voltage drop and may not cover all configurations.
• Do not expose the battery to strong electrostatic fields, strong magnetic fields, or radiation.

Battery Safety

• ⚠️ Keep the battery away from water, heat sources, sparks, and hazardous chemicals.
• ⚠️ Do not puncture, drop, crush, burn, penetrate, shake, strike, or step on the battery.
• ⚠️ Do not open, dismantle, repair, tamper with, or modify the battery.
• ⚠️ Do not touch any terminals or connectors.
• ⚠️ Ensure any battery charger or charge controller is disconnected before working on the battery.
• ⚠️ Do not connect or disconnect terminals without first disconnecting loads.
• ⚠️ Do not place tools on top of the battery.
• ⚠️ Use suitable handling equipment for safe transportation.
• ⚠️ Do not insert foreign objects into the positive and negative terminals.

Renogy Support

To discuss inaccuracies or omissions in this guide or manual, visit or contact Renogy:

• renogy.com/support/downloads
• contentservice@renogy.com

Questionnaire Investigation:

(QR code linking to a questionnaire.)

To explore more possibilities of solar systems, visit Renogy Learning Center at: renogy.com/learning-center

For technical questions about your product in the U.S., contact Renogy technical support:

• renogy.com/contact-us
• 1(909)2877111

For technical support outside the U.S., visit local websites:

• Canada: ca.renogy.com
• Australia: au.renogy.com
• South Korea: kr.renogy.com
• United Kingdom: uk.renogy.com
• China: www.renogy.cn
• Japan: renogy.jp
• Germany: de.renogy.com
• Other Europe: eu.renogy.com

Battery Recycling

Proper disposal and recycling of batteries are essential for environmental protection and a circular economy. Dispose of depleted batteries correctly.

You can dispose of used batteries at Call2Recycle or Earth911 locations that accept Renogy rechargeable Lithium-ion and Lead-acid batteries (AGM&GEL).

• www.call2recycle.org/locator
• search.earth911.com

Participate in our community incentive program for proper battery disposal and earn $20 gift cards for products on our website. It's a simple way to be environmentally responsible and rewarded.

• renogy.com/support

FCC Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

1. Orient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
4. Consult the dealer or an experienced radio/TV technician for help.

FCC Radiation Exposure Statement

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body. The user manual or instruction manual for an intentional or unintentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. In cases where the manual is provided only in a form other than paper, such as on a computer disk or over the Internet, the information required by this section may be included in the manual in that alternative form, provided the user can reasonably be expected to have the capability to access information in that form.

IC Warning

This device complies with Industry Canada's licence-exempt RSS standard(s). Operation is subject to the following two conditions:

1. This device may not cause interference, and
2. This device must accept any interference, including interference that may cause undesired operation of the device.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

IC RF Statement: When using the product, maintain a distance of 20cm from the body to ensure compliance with RF exposure requirements.

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Renogy reserves the right to change the contents of this manual without notice.