Tenergy 24V 5A LiFePO4 Battery Charger

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Sale Price: Call for Price - MOQ 100pcs
Item Number: 01029


  1. Intelligent charger designed for 8 cell LiFePO4 battery packs.
  2. Built-in cooling fan to ensure charger long service life.
  3. Safety protection:
    • Over Voltage Protection
    • Short Circuit Protection
    • Output Reverse Protection
  4. Charging time:
    • Charging Time= (1.41 * Ah rate of the pack) / 5A charge current
  5. Built-in IC to cut-off power automatically when battery is fully charged.
  6. LED indicators:
    • LED 1 = Red = Power On
    • LED 2 = Red = Charging
    • LED 3 = Green = Fully Charged
  • User Instructions:
    • Check the output plug of this charger and make sure it is not loose.
    • Before charging, please connect the charger's alligator clips to battery first: the "red" clip connects to the POSITIVE pole and the "black" connects to the NEGATIVE pole. After, connect the input power plug to the indoor power supply.
    • The charger applies the intelligent charging method of constant current and constant voltage. The charger will automatically shut off when battery is fully charged. Unplug the input power supply then disconnect the output clips.
    • When charger is not in use or finished charging, be sure to unplug input power supply.
    • Indictor LED instruction:
      • "Charging" indicator shows "red" under normal charging state. It turns into "Green" when the battery is fully charged, the battery can be put into use at this time.


  • Battery Charger
  • Power Cable
  • Manual

Technical Specifications:


24V 5A Charger

Model TN2405JL

Max Output Power


Output Voltage

24V ±0.02Vdc

Output Current


Rated Input Voltage


Input Voltage Range


AC Input Voltage Frequency

50∼60 Hz

Constant Current


Constant Voltage


Cut-off Current


Power Efficiency

≥90% (Vin=110Vac, rated load)

Over Voltage Protection


Software Over Voltage Protection

The charger software limits the maximum output voltage to a level suitable for the connected battery system

Thermal Protection


Current Limiting Protection

YES (At CC Mode)

Reverse Polarity Protection

When output wires are reversely connected to the battery the charger will not operate and will work normally when DC wires are correctly connected

Electric Strength Test Input-Output

1500Vac/10mA/1 min (No Breakdown)

Isolation Resistance Input-ground


Isolation Resistance Output-ground


Leakage Current



CE/UL Compliant

High Temperature Ambient Operating


Low Temperature


High Temperature Storage

+70°C (Normal after recovery under normal temperature for 2 hours)

Low Temperature Storage

+40°C (Normal after recovery under normal temperature for 2 hours)

Random Vibration

20Hz to 2000Hz 3 Grms 20 hours per axis

Repetitive Shock

40g peak 3 orthogonal axes, 3+ and 3- in each axis, 11ms pulse width

Thermal Shock

-35°C to 75°C, <3min transition, 2.5 hours dwell, 200 cycle

Drop Test

BS EN60068-2-32:1993 TEST ED: free fall appendix B

AC Wire Length

1.5 m length

DC Wire Length

1.5 m length

Net Weight 1.0Kg


170mmX90mmX50mm (L*W*H)

Output Connector Type

XLR Connector



The charger has been calibrated to take account of the voltage drop in the DC output cables during operation, to prevent the possibility of over or under charging of the battery it is recommended the DC output cables are connected directly to the battery without modification.


  • Only for use with LiFePO4 4 cell battery pack (If used with battery pack of less cells will cause damage to battery and possible personal injury may occur).
  • Unplug charger after use.
  • To prevent electrical shock, DO NOT remove casing
  • Be careful of high-voltage inside charger. If failure happens, please contact us. Users and non-professional technicians are prohibited to open the charger!
  • Keep charger out of children's reach.
  • The charger and battery belongs in indoor environment with good ventilation and good cooling system, Do not expose to humid, high temperature, flammable, explosive gas environments.
  • Do not bring charger along during transportation to prevent shock damage!
  • Read the instructions carefully before using.
  • Damage caused by improper use is not covered by warranty.

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