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Rectangular 3.7V 700mAh lithium battery pack with smooth finish

Estry

Estry ET-400 3.7V 700mAh lithium standard battery

SKU CH-PRDZ-93BF1 MPN ET-400

A 3.7 V, 700 mAh lithium replacement cell for Educator ET-400, K9-400, 1200, K9-402, K9-800, RX-120 and EZ-903 transmitters

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Capacity700mAh
  • Battery Voltage3.7
  • Reliable power for training devices with 3.7V 700mAh lithium cell
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection for safe operation
  • Matches original dimensions of 42.25 x 26.0 x 7.3mm for exact fit
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS quality standards
  • Replaces part numbers PL-752544 and BN720LP across compatible Educator models

Replacement battery for Educator transmitters

This 3.7V 700mAh lithium cell replaces the original power pack in Educator ET-400, K9-400, 1200, K9-402, K9-800, RX-120 and EZ-903 transmitters. It matches the PL-752544 and BN720LP part numbers and measures 42.25 x 26.0 x 7.3mm.

Buyers needing a direct swap for listed models

Owners of other trainer collars, different voltage requirements or higher capacity demands should look elsewhere. The single-pack format also suits individual replacement rather than bulk servicing.

3.7V 700mAh lithium chemistry

The fixed voltage and capacity determine runtime and safety margins for the supported transmitters. Verify the model number and part code before ordering to ensure electrical compatibility.

Highlights

  • Reliable power for training devices with 3.7V 700mAh lithium cell
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection for safe operation
  • Matches original dimensions of 42.25 x 26.0 x 7.3mm for exact fit
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS quality standards
  • Replaces part numbers PL-752544 and BN720LP across compatible Educator models

Specifications

BrandEducator
TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Capacity700mAh
Battery Voltage3.7

Questions about this item

What are the exact dimensions of the Estry ET-400 3.7V 700mAh battery?

The battery measures 42.25mm in length, 26.0mm in width and 7.3mm in thickness, weighing 39.0g.

How do I install the Estry ET-400 battery into my Educator transmitter?

Power off the device, open the battery compartment, remove the old pack and insert the new ET-400 matching the polarity markings, then close the cover securely.

When should I replace the Estry ET-400 lithium pack?

Replace the pack when run-time drops noticeably below the rated 700mAh capacity or if the battery swells, overheats or fails to hold a charge.

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