Cloud Energy 12V 100Ah LiFePO4 Battery

CATALOGUE

01 / PRODUCT INTRODUCTION

02 / 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 12.5V at 90% discharged.
• Maintenance Free; Non spill.
• Perfect replacement or upgrade for a traditional lead-acid battery.

03 / 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. The defective battery needs to be returned to our US warehouse, and inspected and tested by our technical team.

✉️ info@cloudnewenergy.com CE ✔️ RoHS FC

04 / 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

1. Scheme 1: You can use a lithium iron phosphate 4-string (14.6V) charger to charge the battery pack.
2. Scheme 2: You can use photovoltaic solar panels to charge the battery through MPPT.
3. 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 capacity. Recommend Charging Voltage: Between 14.2V to 14.6V.

12V 100Ah 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 3 hrs to 97% capacity.

If you use an inverter (MPPT) 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, below parameters are for reference only. The voltage needs to be tested at rest (with zero current) after 15mins of disconnecting from charger & loads.

05 / 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.

06 / CONNECTION TIPS

Premise of Connection:

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

1. The same battery capacity (Ah);
2. From same brand (as lithium battery from different brands has their special BMS);
3. 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: 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 in parallel. When the batteries are used in parallel or series, the voltage must be the same.

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.

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.

07 / 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 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 10V ± 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 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:

1. Use the charger with 0V charging function (it can charge the battery starting from 0V) to charge the battery. After fully charged, the battery can be used normally.
2. Use another 12V lithium battery to connect in parallel with the battery for a minute to activate the battery (lead-acid battery with 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.

08 / PRECAUTIONS

• When recharging, use the LiFePO4 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.

09 / DISCHARGE CURVE

Different Rate Discharge Curve (25°C)

Graph showing voltage drop over time at different discharge rates (0.1C, 0.2C, 0.5C) at 25°C. The Y-axis represents Voltage (V) from 9.2V to 14.0V, and the X-axis represents Discharge Time from 0 to 10 hours. Higher discharge rates lead to a more rapid decrease in voltage.

Different Temperature Discharge Curve (0.5°C)

Graph showing battery voltage versus capacity percentage at different operating temperatures (from -10°C to 50°C) under a 0.5°C discharge rate. The Y-axis represents Voltage (V) from 10.0V to 13.5V, and the X-axis represents Capacity (%) from 0% to 100%. Higher temperatures generally maintain higher voltages at a given capacity.

State Of Charge Curve (0.5C, 2.5°C)

Graph illustrating the relationship between charging time, voltage, and state of charge (SOC) at 0.5C rate and 2.5°C. The left Y-axis shows Voltage (V) from 10.0V to 15.0V, the right Y-axis shows State of Charge (%) from 0% to 100%, and the X-axis shows Charging Time (Minutes) from 0 to 150. The voltage rises and plateaus as the battery charges.

Charging Characteristics (0.5C, 2.5°C)

Graph showing voltage and charging current during charging at 0.5C rate and 2.5°C. The left Y-axis shows Voltage (V) from 10.0V to 15.0V, the right Y-axis shows Charging Current (A) from 4.0A to 100.0A, and the X-axis shows Charging Capacity (%) from 0% to 100%. The charging current is high initially and decreases as the battery approaches full charge.

Different DOD Discharge Cycle Life Curve (0.5°C)

Graph showing the expected cycle life of the battery at different depths of discharge (DOD) at 0.5°C. The Y-axis represents Remaining Capacity (%) from 60% to 100%, and the X-axis represents the Number of Cycles from 0 to 8000. Lower DOD percentages result in significantly more charge/discharge cycles before capacity degradation.

Different Temperature Self Discharge Curve

Graph showing the self-discharge rate of the battery at different storage temperatures (10°C to 50°C) over 12 months. The Y-axis represents Remaining Capacity (%) from 60% to 100%, and the X-axis represents Storage Time (Months) from 0 to 12. Lower storage temperatures lead to slower self-discharge and higher retained capacity.

10 / APPLICATION

• RV, Camper, Trailer, Caravan, Camping Truck, Bus etc.
• Solar System+ Wind Power System
• Home Energy System
• Boat & Fishing
• Wireless Lawn Movers, Vacuum Cleaner & Washing Machine
• Portable Video Camera & Portable Personal Computer
• Car Audio System
• Light Equipment
• Emergency Lighting Equipment
• Fire Alarm & Security Systems
• Electric Equipment & Telemeter Equipment Portable
• Toys & Consumer Electronics

Application Visuals Description:

The document includes various images depicting the battery's applications:

• A group of people enjoying leisure time near an RV at night.
• A long, bus-like vehicle equipped with solar panels on its roof.
• A modern lawnmower in a green garden.
• A multi-person golf cart.
• A sleek boat cruising on the water.
• A collection of professional photography equipment, including cameras, lenses, and accessories.
• A residential rooftop fitted with solar panels.
• The interior of a camper van with people inside.
• A red illuminated EXIT sign in an indoor setting.
• A classroom scene with a blackboard labeled "School Warehouse".
• A person using an electric wheelchair.
• A fishing boat on a lake, equipped for angling.
• A recreational vehicle (RV) with solar panels installed on its roof.
• A hand operating a digital control panel.