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Blue PVC-wrapped 2×18650 lithium-ion pack, 65×37×18 mm, wire leads attached

DUSLAN

DUSLAN 3.7 V 5200 mAh Li-ion battery pack 2×18650

SKU CH-GW1D-FP8XC

Two 18650 cells deliver 5200 mAh at 3.7 V with an 8 A protection PCB and 7 A polyswitch

  • Battery TypeBattery Pack
  • 5200 mAh capacity powers devices longer
  • Built-in 8 A PCB prevents overcharge and short circuits
  • Dual 18650 cells deliver 3.7 V nominal voltage
  • 7 A polyswitch limits peak discharge and guards polarity
  • UN 38.3 certified for safe transport

Compact 5200 mAh dual-cell pack

This DUSLAN lithium-ion battery pack combines two 18650 cells into a single 3.7 V module rated at 5200 mAh. It targets engineers, hobbyists and repair technicians who need a ready-made pack with integrated protection for portable devices or custom power projects. The assembly is wrapped in PVC shrink with 18 AWG wire leads for direct soldering or connector attachment.

Built-in PCB and polyswitch protection

An on-board PCB limits charge voltage to 4.2 V and discharge cut-off to 2.75 V while guarding against over-charge, over-discharge, over-current and short circuits at 8.0 A. A 4.2 A polyswitch adds a secondary current limit and reverse-polarity protection. Maximum charge current is 5 A and maximum discharge current is 7 A, so the pack runs cool and quiet in typical low-to-moderate drain applications.

Sustained discharge within polyswitch limit

Under continuous load the polyswitch caps output at 7 A, preventing the cells from exceeding their safe operating area during prolonged use. The 2600 mAh ICR18650 B4 cells maintain stable voltage through the discharge curve without memory effect, and the pack meets UN 38.3 requirements for safe transport. Builders needing higher continuous current or a different form factor should consider alternative configurations.

Highlights

  • 5200 mAh capacity powers devices longer
  • Built-in 8 A PCB prevents overcharge and short circuits
  • Dual 18650 cells deliver 3.7 V nominal voltage
  • 7 A polyswitch limits peak discharge and guards polarity
  • UN 38.3 certified for safe transport

Specifications

Battery TypeBattery Pack

Questions about this item

How do I install the DUSLAN 5200 mAh pack and which polarity mistake trips the polyswitch?

Solder the 18 AWG leads observing the marked polarity; the 4.2 A polyswitch will open if the pack is connected backwards, preventing damage.

What maintenance does the 2×18650 pack need and when should it be replaced?

No scheduled maintenance is required; replace the pack when run-time falls below your needs or if the PVC wrap or leads show damage.

What limit appears first during sustained high-current use of the 5200 mAh pack?

The 4.2 A polyswitch limits continuous discharge to 4.2 A, so it will trip before the 8 A PCB or the 7 A rating is reached.

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