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LiCoO2 Li-Ion 7.4V 500mAh (4.5Wh) Rechargeable Battery EQ-LIB-74

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Item Number: EQ-LIB-74

Quantity Discounts

5 to 10USD$7.19
11 to 15USD$6.79
16 to 20USD$6.39
21 to 25USD$5.99
26 to 30USD$5.59
31 or moreUSD$4.79


  • Built in PCB inside battery to protect battery from overcharging and overdischarging.
  • Can replace 9V Alkaline battery and rechargeable NiMh with double running time at similar price
  • Excellent charge/discharge cycle characteristics
  • No memory effect
  • Wide range of working temperature and works at -20oC to 60oC
  • Please use   9V Li-ion smart  charger with 9V snap-on connector to recharge the battery and charge time is about 1.5 hours
  • Warning: N ever use 9V NiMH battery charger to charge the Li-Ion battery. Misuse battery charger may cause battery explosion.
  • Note: this battery is bit larger than regular 9v NiMh rechargeable battery. Please check the size of battery compartment
  • Please click here to download specification 


  • Instruments, Alarm, Remote control, Cordless telephone, Electronic thermometer, Wireless doorbell and so on.
  • Might not fit some microphone battery compartment .

Specification Sheet




Rated capacity


Charge : 1C to 4.2V, 0.01C cut off
Discharge:0.2C to 2.75V cut off

Note: info is base on single cell. There are 2

cells in the battery.

Nominal Current



Chemical LiCoO2

Nominal Voltage



Min. Dischargeable Voltage



Max. Chargeable Voltage

8.40 +/-0.06V

Standard : 8.4V

Max. Constant Discharging Current

500mA (1C rate)




Over Charging Protection

Charge >8.4V protection circuit cuts off

Over Discharging Protection

Discharge 5.5V protection circuit cuts off

Short Circuit Protection

Short between terminals, the circuit cuts off

Operating temperature

Charge: 0 - 45oC

Discharge:-20oC - 60oC


Storage temperature

-20oC - 45oC


Max Dimension (mm)

Thickness:  17.8mm (0.7")
Width:        26.8mm (1.05")
Height:       49.2mm (1.94")*

 * include the terminal connector

 Weight 1.7 oz (48g)


    Note: MTI only sells Li chip within the USA and does not accept international order
    due to restrictions on hazard material exportation!!!
    MTI reserves the right to charge additional handling fee due to special shipping/handling requirements.

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    1. Prices listed online are valid for US market and whom pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
    2. We may add extra charges for paper order and net30 terms due to extra labor cost.
    3. The prices listed are subject to change without notice.