cloud energy 100Ah 12.8V 100Ah Battery Pack User Guide

: June 1, 2024
: cloud energy

Table of Contents

cloud energy 100Ah 12.8V 100Ah Battery Pack
Product Information
Product Usage Instructions
Appearance
PRODUCT INTRODUCTION
ADVANTAGE
WARRANTY POLICY
CHARGING TIPS
LONG-TERM STORAGE
CONNECTION TIPS
About Our Battery’s BMS
PRECAUTIONS
DISCHARGE CURVE
APPLICATION
APPLICATION
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

cloud energy 100Ah 12.8V 100Ah Battery Pack

cloud-energy-100Ah-12.8V-100Ah-Battery-Pack-Product

Product Information

Specifications:

Capacity: 100Ah
Voltage: 12.8V
Weight: 10.5KG/23.14LB
Energy: 1280Wh
Continuous Discharge Current: 100A
Max Discharge Current: 100A
Max Charge Current: 20A (0.2C)
Max Power Output: 1280W
Cycle Life: 2000 cycles
Dimensions: 330172215 mm / 136.778.46 inch

Product Usage Instructions

Charging the Battery:
To charge the battery, use a compatible charger with a maximum charging current of 20A. Connect the positive and negative terminals of the charger to the corresponding terminals on the battery. Make sure to follow the polarity markings to avoid damage.
Discharging the Battery:
When using the battery, ensure not to exceed the continuous discharge current of 100A or the maximum discharge current of 100A. Connect your device or load to the battery terminals securely.
Maintenance:
Regularly check the battery for any signs of damage or corrosion. Keep the terminals clean and tight to ensure proper functioning. Avoid exposing the battery to extreme temperatures or moisture.

FAQ:

Q: What is the cycle life of the battery?
A: The battery has a cycle life of approximately 2000 cycles, meaning it can be charged and discharged up to 2000 times before experiencing significant capacity loss.
Q: What is the recommended charging current?
A: The recommended maximum charging current is 20A at a rate of 0.2C for optimal performance and battery longevity.

Appearance

cloud-energy-100Ah-12.8V-100Ah-Battery-Pack-Product

PRODUCT INTRODUCTION

cloud-energy-100Ah-12.8V-100Ah-Battery-Pack-Fig-1

ADVANTAGE

Mobile with carry handles makes it easy to lift and move around.
With a battery management system enclosed, needs no extra wiring.
Built with LiFeP04 battery cells that are engineered to deliver superior performance & longevity.
Battery voltage stays above 12.SV 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.An d the defective battery needs to be returned to our US warehouse, and inspected and tested by our technical team.
- info@cloudnewenergy.com.

CHARGING TIPS

About Charging Voltage

Based on the characteristics of Lithium Iron Phosphate (LiFeP04) batteries, the voltage measured by all LiFeP04 batteries 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 minutes.

Charging Methods

Scheme 1: You can use a lithium iron phosphate 4-string (14.6V) 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 a 14.6V lithium battery charger to maximize the capacity.
Recommend Charging Voltage: Between 14.2V and 14.6V.

12V 100 Ah Recommend Charging Current:

20A (0.2C) The battery will be fully charged in around 5 hrs to 100% capacity.
30A (0.3) The battery will be fully charged in around hrs to 97% capacity.

If you use an inverter (MPPTI to connect our battery pack, please refer to the following data:
The MPPT settings of the 12.8V lithium iron phosphate battery are as follows:

Charge

Charging limit voltage:14.6V
Overvoltage disconnection voltage: 15V
Overvoltage reconnection voltage: 14.2V

Discharge

Low voltage disconnection voltage: 10.8V
Low voltage reconnection voltage: 11.6V
Undervoltage warning voltage: 12.4V

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, the below parameters are for reference only. The voltage needs to be tested at rest (with zero current) after 15 minutes of disconnecting from the charger & loads.

cloud-energy-100Ah-12.8V-100Ah-Battery-Pack-Fig-2

LONG-TERM STORAGE

The battery can be operated in temperatures 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 a 50% charge level and recharge every three months if it is not going to be used for a long period.

CONNECTION TIPS

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

The same battery capacity (Ah);
From the same brand (as lithium batteries from different brands have their special BMS);
Purchased in near time (within one month).

About connected in parallels and series
Our LiFePO4 batteries can be connected in parallel and series for larger capacity and higher voltage. We suggest that the Max connection in series is: 4 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 parallel. When the batteries are used in parallel or series, the voltage must be the same.

Please refer to the following picture for the series connection

cloud-energy-100Ah-12.8V-100Ah-Battery-Pack-Fig-3

Please refer to the following picture for a parallel connection

cloud-energy-100Ah-12.8V-100Ah-Battery-Pack-Fig-4

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

Step 1.
Fully charge your batteries separately.
Step 2.
- Connect your batteries one by one in parallel, and leave them together for 12~24hrs.
- 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 circuits, 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 15V or the overdischarge voltage is lower than 8.8V, the battery will automatically disconnect. Our recommended charging voltage and discharging voltage are 14.4 ± 0.2V and lOV ± 0.2V, respectively. If the charging voltage is lower than 13.8V, 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 30 minutes. 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 the 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 12V lithium battery to connect in parallel with the battery for a minute to activate the battery (a lead-acid battery with a voltage more than/equal to 12V and less than/equal to 14.6V 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 the 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 such as a 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 the tab.
The battery tabs are not so stubborn, especially for aluminium tabs.
Do not short-circuit the battery by directly connecting the positive and negative terminals with a 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.