Jeadda 2pcs x 3.7V 830mAh Li-Polymer Rechargeable Battery 503450 with Connector

Description

Product Overview
This 503450 rechargeable lithium‑polymer battery delivers a reliable 830mAh capacity at 3.7V nominal voltage, built with an integrated protection board to guard against overcharge, over‑discharge, short circuit, and overcurrent. The pre‑attached connector (type optional – see below) simplifies installation, making it a drop‑in replacement or upgrade for a wide range of battery‑powered devices.

Key Specifications

• Model: 503450 (5.0mm × 34mm × 50mm)

• Battery Type: Rechargeable polymer lithium‑ion (LiPo)

• Nominal Voltage: 3.7V

• Charge Cut‑off Voltage: 4.2V

• Discharge Cut‑off Protection: 2.7V ± 0.1V

• Overcurrent Protection Trigger: 3.0A + 1.0A (operating range 2.7V ~ 4.25V)

• Capacity: 830mAh

• Dimensions: 5.0 × 34 × 50 mm

• Connector: Pre‑soldered wires with optional connector (choose your preferred type)

Protection Features
The built‑in protection circuit module (PCM) ensures safe operation:

• Overcharge protection – prevents voltage from exceeding 4.25V

• Over‑discharge protection – cuts off output at ~2.7V to extend cell life

• Short‑circuit protection – instant shutdown in case of fault

• Overcurrent protection – limits current within safe range

Compatible Applications
Widely used in:

• MP3/MP4 players, Bluetooth speakers, and portable audio devices

• Mini cameras, dashcams, and wireless security cameras

• GPS trackers, navigators, and pet locators

• Wearable devices, smart watches, and handheld instruments

• DIY power banks, sensor nodes, and hobbyist electronics

Package Contents

• 2 × 503450 Li‑Po battery with protection board and pre‑attached wires/connector