cloud energy 20240311031535 24V 100Ah LiFePO4 Battery Pack Owner’s Manual

: June 1, 2024
: cloud energy

Table of Contents

cloud energy 20240311031535 24V 100Ah LiFePO4 Battery Pack
Product Usage Instructions
PRODUCT INTRODUCTION
WARRANTY POLICY
CHARGING TIPS
CONNECTION TIPS
DISCHARGE CURVE
APPLICATION
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

cloud energy 20240311031535 24V 100Ah LiFePO4 Battery Pack

Specifications:

Capacity: 100Ah
Voltage Range: 25.6V – 29.2V
Weight: 19.5KG/43LB
Energy: 2560Wh
Max Continuous Discharge Current: 100A
Max Continuous Charge Current: 100A
Recommended Charge Current: 20A (0.2C)
Power Rating: 2560W
Dimensions: 532207215 mm / 20.948.158.46 inch

Product Usage Instructions

Charging the Battery:
To charge the battery, connect the appropriate charger with a maximum recommended charge current of 20A (0.2C) to the battery’s charging port. Ensure that the voltage output of the charger falls within the battery’s specified voltage range of 25.6V – 29.2V.

Discharging the Battery:
When using the battery to power devices, ensure that the total discharge current does not exceed the maximum continuous discharge current of 100A to prevent damage to the battery.

Maintenance:
It is recommended to regularly check the battery’s voltage to ensure it remains within the specified range. Avoid exposing the battery to extreme temperatures or moisture to prolong its lifespan.

FAQs:

Q: What is the recommended charge current for this battery?
A: The recommended charge current for this battery is 20A (0.2C).

Q: What is the maximum continuous discharge current of this battery?
A: The maximum continuous discharge current of this battery is 100A.

Q: How can I contact customer service for after-sales support?
A: For after-sales service, you can email [email protected].

After sales service email：[email protected]

PRODUCT INTRODUCTION

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ADVANTAGE

Mobile with carry handles makes it easy to lift and move around.
With battery management system enclosed, need no extra wiring.
Built with LiFePO4 battery cells that are engineered to deliver superior performance & longevity.
Battery voltage stays above 26.8V at 90% discharged.
Maintenance Free; Non spill.
Perfect replacement or upgrade for a traditional lead-acid battery.

WARRANTY POLICY

We provide a five-year warranty for all batteries. Our five-year battery warranty includes the following privileges, if used correctly according to the manual :

We will assist in analyzing the customer’ s problem within 24 hours, help solve the problem, restore battery usage, and introduce the best use method.
If the problem cannot be resolved, we will send a new battery to replace the defective battery. And the defective battery needs to be returned to our US warehouse, and inspected and tested by our technical team.

[email protected]

CHARGING TIPS

About Charging Voltage
Based on the characteristics of Lithium Iron Phosphate (LiFePO4) batteries, the voltage measured by all LiFePO4 batteries during is not the real voltage of the battery.
Therefore, after charging and disconnecting the battery from the power source, the voltage of the battery will gradually drop to its real voltage.
If you need to test the real voltage of the battery, please charge and disconnect the power supply and test its voltage after putting it aside for over 15 mins.

Charging Methods

Scheme 1: You can use a lithium iron phosphate 4-string (29.2V) charger to charge the battery pack.

Scheme 2: You can use photovoltaic solar panels to charge the battery through MPPT.

Scheme 3: You can use the inverter to charge the battery pack (note: the inverter needs a built-in AC to DC charging function)

Battery Charger
Use 14.6V lithium battery charger to maximize the ca acity.
Recommend Charging Voltage: Between 28.4V to 29.2 V.

24V 100 Ah Recommend Charging Current:

20A (0.2C)The battery will be fully charged in around 5 hrs to 100% capacity.
30A (0.3C) The battery will be fully charged in around 3 hrs to 90% capacity.

If you use an inverter (MPPT) to connect our battery pack, please refer to the following data:
The MPPT settings of the 25.6 V lithium iron phosphate battery are as follows:

Charge

Charging limit voltage: 29.2V
Overvoltage disconnection voltage: 30 V
Overvoltage reconnection voltage: 28.2V

Discharge

Low voltage disconnection voltage: 21.6 V
Low voltage reconnection voltage: 23.6 V
Undervoltage warning voltage: 24.8V

STATE OF CHARGE(SOC)
The battery capacity could be roughly estimated by its voltage. As there are subtle differences in the voltage of each battery, below parameters are for reference only. The voltage needs to be tested at rest (with zero current) after 15mins of disconnecting from charger& loads.

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LONG-TERM STORAGE

The battery can be operated in temperature of -20° C to 60° C, and a temperature between 10°C to 35°C is ideal for long-term storage.
Store in a fireproof container and away from children.
For a longer-lasting product, it is best to store your battery at 50% charge level and recharge every three months if it is not going to be used for a long period of time.

CONNECTION TIPS

Premise of Connection: To connect in series or/ and in parallel, batteries should meet below conditions:

The same battery capacity (Ah);
From same brand (as lithium battery from different brands has their special BMS);
Purchased in near time (within one month).
- About connected in parallels and in series
  Our LiFePO4 batteries can be connected in parallels and in series for larger capacity and higher voltage. We suggest that the Max connection in series is: 2 pcs batteries to 48V, the Max connection in parallels is: it can connect multiple batteries, and no more than 10 pcs in parallel. Products of different manufacturers cannot be connected in series or in parallel. When the batteries are used in parallel or series,the voltage must be the same.

Please refer to the following picture for series connection

Please refer to the following picture for parallel connection

Two Necessary Steps Before Connecting:
These two steps are necessary in order to reduce the voltage difference between batteries, and through these, the battery system can perform the best of it in series or/ and in parallel.

Step1.
Fully charge your batteries separately.

Step2.
Connect your batteries one by one in parallel, and leave them together for 12~24 hours.
And then, you can connect your batteries in series or/ and in parallel.

About Our Battery’s BMS
The unique built-in battery management system (BMS) of our product’s lithium battery can protect it from overcharge, deep discharge,overload, overheating and short circuit, and low self-discharge rate.
Our BMS has a high-temperature disconnect function. When the internal temperature of the battery reaches 75 °C (167 ° F), It will automatically disconnect to protect the battery. With overcharge and overdischarge protection functions, when the overcharge voltage exceeds 30 V or the overdischarge voltage is lower than 8.8V, the battery will automatically disconnect. Our recommended charging voltage and discharging voltage are 28.8 = 0.2V and 20V = 0.2V, respectively. If the charging voltage is lower than 27.6V, the battery power (with a deviation of 1-2%) cannot be fully charged.

HOW TO ACTIVATE THE BATTERY WHEN BMS CUT IT OFF FOR PROTECTION?
If the BMS has cut off the battery for protection, you need to cut off the load of the battery and put the battery aside for 30mins. Then the battery will automatically recover itself to normal voltage and can be used after fully charged.

If the battery is unable to recover itself and its voltage is too low to hold a charge, you can activate it in below two ways:

Use the charger with OV charging function (it can charge the battery starting from OV) to charge the battery. After fully charged, the battery can be used normally.
Use another 24V lithium battery to connect in parallel with the battery for a minute to activate the battery (a lead-acid battery with voltage more than/equal to 24V and less than/equal to 29.2V will also work). After that, fully charge the battery and it can be used normally.

PRECAUTIONS

When recharging, use the LiFeP04 battery charger specifically for that purpose.
Do not strike battery with any sharp edge parts, such as Ni-tabs,pins and needles.
Do not immerse the battery in water and seawater.
Do not use and leave the battery near a heat source as fire or heater.
Do not reverse the position and negative terminals.
Do not connect the battery to an electrical outlet.
Do not discard the battery in fire or heat it, Do not bend tab.
The battery tabs are not so stubborn especially for aluminum tab.
Do not short-circuit the battery by directly connecting the positive and negative terminal with metal object.
Do not transport and store the battery together with metal objects such as necklaces, hairpins etc.
Do not directly solder the battery and pierce the battery with a nail or other sharp object.