Li Time LiFeP04 24V 50Ah Smart Lithium Iron Phosphate Battery User Manual

24V 50ah
PRODUCT (50A BMS) MANUAL
Lithium Iron Phosphate Battery (LiFeP04)

PRODUCT OVERVIEW

24V SOAH BATTERY
Operating Voltage: 25.6V
Charging Voltage: 28.8V+0.4V
Recommended Charge Current: 10A (0.2C)
Max. Continuous Discharge Current: 50A
Max. Continuous Load Power: 1280W
Max. Thrust Power: 100lbs

ADDITIONAL COMPONENTS

M8- 5/8″ (16mm) Terminal Bolts
The terminal bolts are used to secure multiple cable lugs to a single battery terminal. The bolts can be replaced with M8 bolts of other lengths based on actual needs.

Insulating Caps for Bolts

24/7 MONITORING VIA LITIME APP
The LiTime 24V 50Ah Smart TM LiFePO4 battery, integrated with Bluetooth 5.0, enables accurate and effortless real-time tracking and management of the battery status.
Step 1
Download the LiTime APP and register your account.

Step 2
Pair the battery with the LiTime APP and effortlessly keep track of the battery’s real-time status.

**FCC STATEMENT

**

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

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

This device 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 device 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 device 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:

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

RF Exposure Information:This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body.
Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment.

IMPORTANT SAFETY INSTRUCTION

• Please keep the battery away from heat sources, sparks, flames, and hazardous chemicals.

• Maintain Adequate Ventilation and Heat Dissipation
  Place the battery in a well-ventilated area with sufficient heat dissipation to prevent overheating and damage.

• Size the Battery Cables and Connectors Appropriately
  Use high-stranded copper connectors and heavy gauge cables to handle possible battery loads. Make sure to keep identical cable lengths.
  Avoid accidents caused by unsuitable connectors or cables that make the connection a heat source during battery operation.

• Please tighten all cable connections, as loose cable connections can cause terminal meltdown or fire.

• DO NOT puncture, drop, crush, burn, penetrate, shake, or strike the battery.
  The battery should be securely fastened during handling to prevent impact or dropping.
  It should be safely secured to a solid plane and the cables safely tied to a suitable location to avoid arcing and sparking due to friction.
  DO NOT press it by placing heavy stuff on top of it for long periods, which may damage it due to an internal short circuit.

• DO NOT immerse the battery in water whether the battery is in use or on standby.

• DO NOT open, dismantle, or modify the battery.

• DO NOT touch the exposed electrolyte or powder if the battery casing is damaged.

• Uncovered electrolyte or powder that has contacted the skin or eyes MUST be flushed out with plenty of clean water immediately. Seek medical attention afterward.

• Avoid Short Circuit
  Please use circuit breakers, fuses, or disconnects that have been properly sized by certified electricians, licensed installers, or regional code authorities to protect all the electrical equipment in your system. The battery has a built-in battery management system (BMS) that protects the battery cells from over-charge, over-discharge, and over-current, however this alone will not protect your system from severe electrical conditions.

• Trained and certified technicians are required for safe and reliable installation. This product manual can only serve as a guideline as it cannot cover all possible scenarios.

• Verify Correct Polarity
  Please verify the polarity before connecting the wiring. Reverse polarity can and will destroy the battery and other electrical equipment. Use a multimeter to determine proper polarity.

• Avoid Exposed Metal Terminals or Connectors
  The terminals of this battery are always live. Avoid exposed metal terminals or connectors; DO NOT place tools on the terminals or touch them with bare hands; DO NOT short circuit or use outside of specified electrical ratings.

• DO NOT dispose of the battery as household waste. Please use recycling channels in accordance with local, state, and federal regulations.

WARNING

• Batteries are potentially dangerous and proper precautions must be taken during operation and maintenance.
• Improper use of the battery can lead to battery failure or other potential damage.
• Improper configuration, installation, or use of related equipment in the battery system may damage the battery and other related equipment.
• Please wear proper personal protective equipment when working on the battery.
• Battery installation and maintenance must be performed by trained and certified technicians.
• Failure to follow the warnings above can result in potential damage.

If you have any questions or need any help, please feel free to contact us (and leave your contact phone number) at service@litime.com , we will offer phone or email support in 12hrs.

BATTERY PARAMETERS

60A@30mins
Surge Discharge Current| 250A@1 second
Max. Continuous Output Power| 1280W
Max.Thrust Power| 100Ibs ①
Dimension| L10.24W6.61H8.31 inch
L260W168H211 mm
Housing Material| ABS (Flame Retardant Plastic)
Recommended Terminal Torque| 106.2 to 123.9 inch. lbs / 12 to 14N.m
Protection Class| IP65
Temperature Range| Charge: 0°C to 50°C / 32°F to 122°F
Discharge: -20°C to 60°C / -4°F to 140°F
Storage: -10°C to 50°C / 14°F to 122°F
Low Temperature Charging Protection (LTCP) Function ②| Yes
Resume Charging Temperature Under LTCP| 5°C/41°F (Battery Temperature)
FCC ID| 2BDSV-2450

① The 24V 50Ah Smart TM battery with Bluetooth is suitable for 24V trolling motors up to 100 Ibs thrust.
② The 24V 50Ah Smart TM battery with Bluetooth supports Low Temperature Charge Protection(LTCF), where the BMS stops battery charging when the battery temperature falls below 0°C/32°F and resumes charging when the temperature rises above 5°C/41°F.

CHARGING METHODS

SOLAR PANEL(S) & CONTROLLER
Solar Panel
Recommended Power: ≥ 400W
The battery can be fully charged in one day (with effective sunshine 4.5hrs/day) by 400W solar panels.
It may take more than one day to fully charge the battery by 2400W solar panels since the duration and intensity of light would be a great factor for their charging efficiency.
Controller
Recommended Charging Current:

10A (0.2C) | The battery will be fully charged in around 5hrs to 100% Capacity.
---|---
25A (0.5C)| The battery will be fully charged in around 2hrs to around 97% capacity.

** Recommended Charging Mode: 24V (29.2V) LI (LiFePO4)
Controller Settings
** Refer to the below parameters if you need to manually set up your controller. As different types of batteries have different charging modes, it is recom- mended to set only the following parameters for LiFePO4 batteries. The settings for other types of batteries do not apply to LiFePO4 batteries except for the following settings.

BATTERY CHARGER
Use 29.2V lithium iron phosphate (LiFePO4) battery charger to maximize the capacity.
Recommended Charging Voltage: Between 28.4V to 29.2V
Recommended Charging Current:

capacity.

Tips
① It’s recommended to disconnect the charger from the battery after fully charging.

ALTERNATOR / GENERATOR
LiTime battery can be charged by an alternator or generator.
If the alternator/generator supports DC output, a DC-to-DC charger needs to be added between the battery and the generator; if the alternator/generator supports AC output, please refer to the recommendations in “Battery Charger” above to add a suitable battery charger between the battery and the generator.
Recommended Charging Voltage: Between 28.4V to 29.2V
Recommended Charging Current:

capacity.

Step 1 Wear Insulating Gloves
Wear insulating gloves for protection before connecting. Please pay attention to operation safety in the process of connection.

Step 2 Voltage Balancing Before Connection
Below two steps are necessary to reduce the voltage difference between batteries and let the battery system perform the best of it in series or/ and in parallel.
Step 1
Fully charge the batteries separately.
(voltage at rest: 226.66V)
Step 2
Connect all of the batteries in parallel, and leave them together for 12~24hrs.

Step 3
They’re now ready for the connection.
Step3 Battery-to-Battery Connection
#1 Connect Batteries in Series
to
After series connection, the voltage of the battery system will be doubled accord- ing to the number of batteries you connect.
E.g. If two 24V 50Ah TM batteries  are connected in series, the battery system will be 48V (51.2V) 5OAh.

#2 Connect Batteries in Parallel
to
to
Refer to Page 11 for total input & output connection
After parallel connection, the capacity of the battery system will be doubled according to the number of batteries you connect.
E.g. If two 24V 50Ah TM batteries are connected in parallel, the battery system will be 24V (25.6V) LOOAh.

#3 Connect Batteries Both in Series & Parallel
Connect in parallel first, then series.
Step 1
Connect the batteries in parallel.

Step 2
Connect the paralleled battery systems in series.

Step 4 Total Input & Output Connection
Use two copper bars (instead of battery terminals) to connect all the positive and negative output/input cables, ensuring that the input & output currents of each battery are balanced. (Not required when connecting batteries only in series.)
It is not recommended to use one terminal as the total positive or negative output/input of the battery system as the connected terminals may heat up or even melt if the total output/input current of the battery system is too high.

① As of ①/③/⑤/⑦ Wis connected in series with of ②/④/⑥/⑧ please do not connect of ①/③/⑤/⑦ with @ of load or of ②/④/⑥/⑧ with of load, otherwise the battery system will fail to connect in series.
② Please do not connect in reverse order, which may affect the use of the batteries.
Step 5 Rebalancing Every 6 Months
It is recommended to rebalance the battery voltage every six months following Step 2 on Page 9 if you’ re connecting multiple batteries as a battery system, as there might be voltage differences after six months of the battery system running.

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