Expert Power EP12100 User manual

LiFePO4 Series
Features
Overview
Battery Specifications:
Battery Dimensions:
Terminal Dimensions:
Nominal Characteristics
Mechanical Characteristics
Electrical Characteristics
Operation Conditions
Nominal Voltage /V
Nominal Capacity /Ah (25°C , 0.2C)
Weight
Dimensions L W H
BCI
Terminal
Voltage Window
Charge Voltage
Standby Voltage
Max. Continue Discharge Current
Max. Permanent Discharge Current
Max. Continue Charge Current
Cycle Life (+20°C 0.2C 100%DOD)
Operating Temperature
Storage Temperature
Storage Duration
Safety Standard
13
8.4
6.8
• High energy density
• Automatic protection with internal battery
management system
• Low self-discharge rate
• Long cycle life
• Excellent performance in all operating temperatures
The ExpertPower LiFePO4 12v100Ah rechargeable
battery is optimized for low rate applications which
require high energy density.
EP12100
16
8
mm
3~5
12.8V
≥ 100Ah
13 x 6.8 x 8.4 in
Group 31
F12/ M8
22.6 lbs
13.8V
14.4V
100A
9.2 – 14.6V
50A
200A 2Sec.
>2500 Cycles
- 4 – 140˚F
32 – 140˚F
Discharge:
Charge:
32 – 86˚F
UI1642 at cell level
12 Months at 77˚F

LiFePO4 Series
EP12100
BMS - Battery Management System:
Discharge Curves Under Different Temperatures
Self-Discharge Characteristics
Cycle Life vs. DOD Temp. at 0.2C
0.2C CC-Cv Charge Characteristics
a.
b.
a.
b.
a.
b.
a.
b.
a.
b.
a.
b.
RecoveryProtection Condition
Protection
Current
Charging
Discharging
Charging
Discharging
Battery
BMS
Voltage
Temperature
Cell Balance
Short Circuit Protection Disconnect Load
3.5 ± 0.05V
150 ± 20mA
Balancing Voltage
Balancing Current
Discharging Short Circuit
Battery
Single Cell
Battery
Single Cell
# of Sesnsor(s)
1
# of Sesnsor(s)
1
≥ 14.8V, Delay 1 ~ 2S
≥ 3.8V, Delay 1 ~ 2S
≤ 9.6V, Delay 1 ~ 2S
Charging: ≥ 149°F or < 23°F
Discharging: ≥ 149°F or < - 13°F
< 140°F > 32°F
< 140°F and > 5°F
<149ºF
≥ 176ºF
> 100A Delay 15 ± 2S
Delay 2 ± 1S
Delay 15 ± 2S
Delay 2 ± 1S
Delay 1 ± 0.5S
≤ 2V, Delay 1 ~ 2S
> 120 ± 2.5A
> 100A
> 200 ± 2.5A
> 250 ± 2.5A
Discharge > 1A or
45 ± 2S
Charge > 1A or
45 ± 2S
≤ 14.0V or
Discharging > 1A
≤ 3.5V or
Discharging > 1A
≥ 12.0V or
Charging > 1A
≥ 3.0V or
Charging > 1A
Battery Attributes

LiFePO4 Series
EP12100
2 In Series - 24V 100Ah 4 In Parallel - 12V 400Ah
To ensure the utmost effectiveness and longevity of your battery configuration, adhere to these essential
guidelines:
1. Battery Consistency: Utilize identical batteries for parallel or series connections.
2. Uniform Voltage Levels: Prior to connecting in parallel or series , guarantee that all batteries share the same
voltage level by fully charging each individual battery. The permissible voltage difference is less than 0.2V.
3. Avoid Mixing Batteries: Do not combine old and new batteries within the same setup.
4. Parallel and Series Separation: Avoid simultaneous parallel and series connections for the batteries.
5. Circuit Limitation: Do not exceed connecting more than 4 batteries per circuit.
6. Regular Maintenance: Annually, the batteries should be individually charged after being detached from
the series. Upon reassembly, the voltage difference should not exceed 0.5V.
Your compliance with these precautions ensures the reliability and longevity of your LiFePO4 rack mounted
battery system.
Series & Parallel Configuration
During the wiring of sequenced batteries, it is imperative to adhere to the following guidelines to ensure optimal
safety and performance:
•Avoid Single Battery Connection: Refrain from connecting both negative and positive wires from your
electrical system to a single battery. Similarly, avoid linking them to batteries positioned centrally within the
sequence.
•Sequential Wiring Logic: Whether arranging multiple batteries in parallel, it is crucial to wire your
sequenced batteries in a manner where the negative and positive wires from your electrical system are
attached to the battery bank via the first and last batteries respectively. To elucidate, the initial battery in your
sequence should have its negative terminal connected to the negative wire of your system, while the final
battery in the sequence should host the positive wire of your system linked to its positive terminal.
Wiring Considerations
Caution
Supports expansion up to 4 batteries in either series for 24V 100Ah, or in parallel at 12V 400Ah.

LiFePO4 SeriesLiFePO4 Series
EP12100
Warnings
1. Do not immerse the battery in water or allow it to get wet.
2. Do not use or store the battery near sources of heat such as a fire or heater.
3. Do not reverse the positive (+) and negative (-) terminals.
4. Do not connect the battery directly to wall outlets or car cigarette-lighter sockets without proper charging equip-
ment. Do not allow exposed ends of cables connected to opposite terminals to touch.
5. Do not put the battery into a fire or apply direct heat.
6. Do not use the battery if the battery casing has been pierced, broken, cracked, or otherwise visibly damaged.
Do not forcibly open the battery casing for any reason.
7. Avoid severe physical shock. Do not throw the battery or heavily strike the battery in any way. Do not put
excessive pressure or step on the battery.
8. Never solder anything directly to the battery terminals.
9. Do not attempt to disassemble or modify the battery in any way.
10. Do not place the battery in a microwave oven or pressurized container.
Battery Charging
Efficiently charging LiFePO4 Batteries involves a precise 2-stage algorithm known as "Constant Current/Con-
stant Voltage" (CC/CV). Following the standard LiFePO4 profile, the process entails a 0.2C Constant Current
(CC) charge up to 14.2V, followed by Constant Voltage (CV) at 14.4V charge until the current reduces to ≤ 0.05C.
For optimal results with a 100Ah LiFePO4 battery, we recommend adhering to these specifications:
•Recommended Max Charging Current: Ideally, the charging current should not exceed 50A (0.5C). How-
ever, when circumstances demand, a faster charge of 100A can be employed. Nonetheless, consistent
usage of the 1C charge method may lead to reduced battery lifespan and capacity due to heightened heat
generation during this process.
It's crucial to note that the utilization of chargers designed for other battery types, such as SLA and Gel chargers,
is strongly discouraged. These chargers, tailored for acid-based chemistries, often come with features like desul-
fation, equalization, and float charging, which are detrimental to LiFePO4 batteries. The built-in BMS may not
suffice to safeguard against the potential damage incurred from using such chargers.
The improper use of SLA chargers can trigger adverse effects:
•Accelerated Aging: Maintaining a LiFePO4 battery at 100% charge using the SLA float charging feature
could significantly expedite the aging and degradation process due to the constant stimulation of battery
cells.
•Polarization and Electrolyte Decay: The excess power supplied by an SLA charger can lead to material
buildup at the electrode-electrolyte interface, known as polarization, and result in electrolyte decay.
Additionally, using an SLA charger with an OCV (Open-Circuit Voltage) detection setting might damage the
battery and fail to revive an over-discharged LiFePO4 battery. The BMS will deactivate the battery for protection,
resulting in a situation where the battery is seemingly in an open-circuit state.
To prevent these issues and ensure optimal battery performance:
•Use Correct Charging Algorithm: Employ the appropriate CC/CV algorithm (14.4V) for LiFePO4 batteries.
SLA smart chargers lack the capability to fully charge or properly maintain LiFePO4 batteries.

LiFePO4 SeriesLiFePO4 Series
EP12100
Usage and Storage
Terms and Conditions
Prior to usage, carefully review all specifications, usage instructions, storage conditions, and warnings detailed in
this document. Adherence to our handling and usage guidelines for this battery pack is paramount. Misuse of
batteries can lead to malfunction, capacity reduction, degradation, overheating, explosion, or fire hazard. Respon-
sibility for appropriate usage and storage, as outlined in this document, rests with the customers. If the battery
exhibits excessive heat, leaks, malfunctions, visible damage, or fails to operate as expected, refrain from use and
promptly contact our support team for assistance.
We disclaim responsibility for any damages resulting from the misuse of this battery, whether accidental or otherwise.
For your safety and the optimal functioning of your electrical system, we strongly advise engaging a qualified
professional for installation. Properly handling electrical connections and components demands a comprehensive
grasp of electrical principles and adherence to local building codes, along with appropriate installation techniques.
Employing a trained professional ensures accurate and secure installation, significantly reducing the risk of
accidents and equipment damage.
1. Before Use Inspection: Before employing the battery, conduct a thorough examination to ensure its integrity,
free from visible damage or structural irregularities.
2. Terminal and Other Visual Checks: Do not utilize the battery if terminals are bent, broken, or if the battery
exhibits any of the following conditions: abnormal heat, wetness, severe physical or water damage extending
to the battery from the packaging, leaks, loose components, cracked casing, bloating, melting, heavy stress,
or indentation. In such instances or if there are concerns about the battery's integrity, promptly contact our
support team for expert assistance.
3. Professional Installation: For optimal performance and prevention of damage or malfunctions, it is strongly
recommended to have these battery packs installed by a professional or experienced individual. Monitor
charging and discharging during initial use, and diligently observe temperature and operational performance.
Any operational issues should be directed to our support team.
4. Proper Storage Conditions: Store the battery pack in a well-ventilated, cool, and dry environment. Avoid
stacking it under heavy objects, exposing it to high temperatures, open flames, or corrosive substances.
5. Temperature and Humidity Considerations: Store the battery within specified temperature conditions.
Maintain a recommended humidity of 60±15%.
6. Ideal Storage Capacity: Store the battery at a capacity between 40% and 60%. Every three months during
storage, follow these steps:
• Fully charge the battery.
• Discharge the battery completely.
• Recharge the battery to a capacity between 40% and 60% to prevent over-discharge during storage.
Disclaimer

LiFePO4 Series
EP12100
*Note on Customer Responsibilities
Customers are responsible for proper maintenance and understanding the limitations of the product.
This includes:
1. Over-discharge from self-discharge during storage.
2. Improper use as a starting battery or in applications for which the product was not designed.
3. Opening or modifying the product.
4. Applying voltages/currents that are too high.
5. Improper storage.
6. Use of an undersized product.
7. Mechanical damage due to impact, excessive vibration, penetration, etc.
8. Damage due to connecting in reverse polarity.
9. Damage or resulting internal corrosion caused by liquids.
10. Use of an incorrect charger or charging profile.
11. Use of an appliance with built-in charging for a different battery chemistry.
12. Connecting the batteries to higher voltage or currents than supported, as stated in this document.
*For a full version of our product warranty please visit our website at:
https://www.expertpower.us/pages/warranty-information or scan the QR code below.
Warranty Information
This warranty guarantees that the batteries will be free from defects in materials and workmanship under normal
use for a period of two years after purchase. However, it does not cover damages caused by customer abuse,
improper handling, overcharging, undercharging, water damage, fire, or any other circumstances beyond our
control. Furthermore, the warranty does not extend to normal wear and tear, capacity loss over time, or gradual
decrease in battery performance.
Exclusions and Limitations
•Reasonable wear and tear.
•Normal corrosion.
•Use of unapproved parts or unapproved alterations to components to the extent prohibited by the manufacturer's
written operating manuals.
•Defects caused by persons other than the manufacturer and its affiliates, including operation or maintenance of
the product or installation and commissioning of the equipment and materials by such persons in violation of the
written operating, maintenance, installation, and commissioning instructions, manuals, and protocols supplied
to the buyer, or buyer's affiliates, by the manufacturer prior to such installation, commissioning or operation.
•Vandalism, misuse, or Force Majeure Events.
•Items expected to be consumed or expended during the normal and routine operation and maintenance of
the product.
•Replacement of the product fulfills the one-time limited warranty during the stated period.

LiFePO4 Series
EP12100
Visit us at:
ExpertPower.us
(562)630 -3002
[e-mail]
6437 Alondra Blvd
Paramount, CA 90723
For Questions
And Support
Customers are responsible for proper maintenance and understanding the limitations of the product.
This includes:
1. Over-discharge from self-discharge during storage.
2. Improper use as a starting battery or in applications for which the product was not designed.
3. Opening or modifying the product.
4. Applying voltages/currents that are too high.
5. Improper storage.
6. Use of an undersized product.
7. Mechanical damage due to impact, excessive vibration, penetration, etc.
8. Damage due to connecting in reverse polarity.
9. Damage or resulting internal corrosion caused by liquids.
10. Use of an incorrect charger or charging profile.
11. Use of an appliance with built-in charging for a different battery chemistry.
12. Connecting the batteries to higher voltage or currents than supported, as stated in this document.
*For a full version of our product warranty please visit our website at:
https://www.expertpower.us/pages/warranty-information or scan the QR code below.