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Rectangular black lithium-ion battery pack with label showing 11.1V 84WH 7500mAh

KingSener

KingSener SM204 11.1V 84WH 7500mAh laptop battery

SKU CH-Z54T-11F3K

11.1 V 84 Wh 7500 mAh Li-ion replacement battery for Anritsu and YOKOGAWA OTDR models

  • Battery Voltage11.1V
  • Battery Capacity84WH/7500mAh
  • High-capacity 84Wh / 7500mAh Li-ion cell powers demanding OTDR sessions
  • 1V nominal voltage matches original spec for stable instrument operation
  • Direct replacement for part SM204 633-75 across Anritsu and Yokogawa models
  • Brand-new condition ensures full rated capacity from first charge
  • Broad compatibility covers MS2721A, MS272xB, MT821xE, MT8222A, AQ7280 and AQ7282A

KingSener SM204 11.1V 84WH battery

The KingSener SM204 is a lithium-ion replacement battery rated at 11.1V and 84WH with a 7500mAh capacity. It is built for technicians who operate Anritsu MS2721A, MS272xB, MT821xE, MT8222A or S331E handheld analysers, as well as Yokogawa AQ7280 and AQ7282A OTDR units.

Installation and common issues

The pack fits directly into the battery compartment of the listed instruments without soldering or adapter cables. Alignment of the connector pins is the only step that regularly causes trouble; forcing the plug bent pins on several field units.

Compatibility checklist

Verify that your device appears in the supported model list, including Anritsu MP1026A, MS2721, MS2721A, MS272xB, MT821xE, MT8222A, S331E and Yokogawa AQ7280, AQ7282A. Confirm the original part number matches SM204 633-75 before ordering.

Highlights

  • High-capacity 84Wh / 7500mAh Li-ion cell powers demanding OTDR sessions
  • 1V nominal voltage matches original spec for stable instrument operation
  • Direct replacement for part SM204 633-75 across Anritsu and Yokogawa models
  • Brand-new condition ensures full rated capacity from first charge
  • Broad compatibility covers MS2721A, MS272xB, MT821xE, MT8222A, AQ7280 and AQ7282A

Specifications

BrandKingSener
ModelSM204
Part NumberSM204 633-75
Battery Voltage11.1V
Battery Capacity84WH/7500mAh

Questions about this item

How can I confirm the 11.1V 84WH battery is working correctly after installing it in my Anritsu MS2721A OTDR?

Power on the device and verify it runs on battery alone; the operating system or built-in meter should show a full charge near 7500mAh and hold voltage around 11.1V under load.

What comes in the box with the KingSener SM204 and is there anything else I need to buy to use it in a Yokogawa AQ7280?

The package contains the 11.1V 84WH Li-ion battery only; no cables, chargers or tools are included, and the unit fits directly into the AQ7280 battery compartment without extra parts.

Which KingSener replacement should I choose for an Anritsu S331E SiteMaster — the SM204 633-75 or a different capacity?

Select the SM204 633-75 rated at 11.1V 84WH 7500mAh; it is the exact model listed for the S331E and matches the original voltage and capacity specifications.

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