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2PCS 3.7v 500mah Battery 303450 Lithium Polymer ion OCTelect

  • Based on 28 reviews
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Features

  • [Battery Size]: 50 x 34 x 3.0mm (L*W*T)
  • [Applicable equipment]: Applicable to small speaker navigator digital navigator lithium battery
  • [Connector type]: Jst pitch 1.25 mm, 2 pins, wire length: 50 mm
  • [Features]: Li-ion battery nominal voltage 3.7V, fully charged 3.7V. Built-in Seiko battery protection module to prevent this battery from overcharging or shorting
  • [Notice]: Please check the battery polarity against the old battery before replacing. Red wire connect power positive "+", black wire connect power negative pole "-". is reversed, the position of the interchange wire is required.

Description

Model: 303450 Nominal voltage: 3.7V ​ Capacity: 500mAh charge cut-off voltage: 4.25V ​ Thickness dimension: ≤ 30.2 mm Discharge cut-off voltage: 2.75V ​ Width dimension: ≤ 34.2 mm Charging temperature: 0 ℃ --45 ℃ ​ Length (including board): ≤ 52 mm ​ ​Discharge temperature: -10 ℃ --60 ℃ ​Standard discharge current: 250mAh Cycle life: more than 80% after 300 cycles ​ Maximum discharge current: 500mAh Warranty period: 12 months ​Standard charging current: 250 mAh Safety performance: Overcharge Overdischarge Overcurrent Short-circuit protection ​Maximum charging current: 500 mAh outlet method: red positive black negative

Number of Batteries: 2 Lithium Polymer batteries required.


Brand: RAEWSTCO


Battery Cell Composition: Lithium Polymer


Battery Capacity: 500 Milliamp Hours


Recommended Uses For Product: digital


Number of Batteries: 2 Lithium Polymer batteries required.


Brand: RAEWSTCO


Model Number: 303450


Model Name: 303450


UPC: 774144188336


Manufacturer: October Technology CO.,LTD.


Built-In Media: protective motherboard,cable,plug


Warranty Description: one year warranty against factory defective


Battery Capacity: 500 Milliamp Hours


Voltage: 3.7 Volts


Reusability: Rechargeable


Compatible Phone Models: 3.7v 500mah battery 303450 lithium polymer ion


Unit Count: 2.0 Count


Battery Weight: 12 Grams


Item Dimensions: 1.97 x 1.34 x 0.12 inches


Item Weight: 12 Grams


Antenna Location: digital


Battery Cell Type: Lithium Polymer


Frequently asked questions

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Perfect for esp32
Battery lasts a good while and came quickly. I used these for a esp32 project.
Reviewed in the United States on February 10, 2026 by Adam Johnson

  • good
they last pretty long and it is very easy to use it is thin though but it doesnt get hot after using it a lot it can fit easy to anything that i owned.
Reviewed in the United States on November 18, 2025 by kevin cai

  • Perfect replacement battery
After several years of use, the LiPO battery in my mirror dashcam began to swell and caused the cam housing to pop open so I replaced the defective OEM battery with one of these and its up and running perfectly.
Reviewed in the United States on October 7, 2024 by Kahuna211

  • Battery
the battery charge is long-lasting
Reviewed in the United States on September 6, 2025 by Erick V.

  • Battery fits for mammoth 20 Battery fits for mammoth 20
Not sure why theres a 1 star review, but i got this for my mammoth 20 numpad thats wireless. The jst cable is 1.25mm which fits into the pcb and works well.
Reviewed in the United States on February 4, 2023 Reviewed in the United States on February 4, 2023 by Andrew Liang

  • Works as intended with modification
Works good but my bf had to alter it
Reviewed in the United States on June 26, 2025 by jesse flores

  • Perfect for Mammoth 20 Perfect for Mammoth 20
If you’re looking for a battery to fit your wireless version of Mammoth 20, this is the right one.
Reviewed in the United States on February 16, 2023 Reviewed in the United States on February 16, 2023 by George

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