2600mAh Battery Replacement for Elecraft KX2 & KH1 PN: KXBT2

Key Specifications

• Brand: Xain-USA
• Model: XA-1112600-ELC
• Replacement Part Number: KXBT2
• Battery Type: Rechargeable Lithium-ion Battery Pack
• Nominal Voltage: 11.1V
• Maximum Charge Voltage: 12.6V
• Capacity: 2600mAh (2.6Ah)
• Energy: 28.86Wh
• Cell Configuration: 3S1P, 3 × 18650 Cells
• Connector: DC 5.5 × 2.1 mm Male Barrel Plug (pending verification for this model)
• Dimensions: 70 × 57 × 21 mm (2.76 × 2.24 × 0.83 in)
• Approximate Weight: 143.6g (5.07 oz)
• Standard Charge Current: 520mA (0.2C)
• Maximum Charge Current: 1300mA (0.5C)
• Standard Discharge Current: 1300mA (0.5C)
• Maximum Continuous Discharge Current: 5A
• Protection: Built-in Battery Management System (BMS)
• Temperature Monitoring: Integrated 10KΩ NTC Thermistor
• UL 2054: Certified
• UN 38.3: Tested and Passed
• MSDS/SDS: Documentation Available

Bullet Points

[UL 2054 Certified | UN 38.3 Tested] Xain-USA 11.1V 2600mAh rechargeable Li-ion battery pack is UL 2054 certified and UN 38.3 tested. Manufactured using quality-controlled 18650 lithium-ion cells, with integrated battery protection circuitry. MSDS/SDS documentation is available.

[Replacement Battery for Elecraft KX2 & KH1 – KXBT2] Designed as a replacement for the Elecraft KXBT2 battery used in compatible Elecraft KX2 and KH1 portable amateur radio transceivers. Provides 11.1V nominal voltage, 2600mAh capacity, and 28.86Wh of rechargeable power for portable ham radio operations, field communications, and QRP applications.

[11.1V 2600mAh – 28.86Wh Rechargeable Li-ion Battery] Built with three 18650 Li-ion cells in a 3S1P configuration. Delivers stable DC power for compatible portable transceivers and radio equipment. Maximum charge voltage is 12.6V, with a rated maximum continuous discharge current of 5A.

[Built-In 5A BMS Protection & 10KΩ NTC Thermistor] Integrated Battery Management System (BMS) rated for 5A continuous discharge, designed to protect against overcharge, over-discharge, overcurrent, and short-circuit conditions. Includes a built-in 10KΩ NTC thermistor for battery temperature monitoring.

[Battery Safety, Charging & Technical Support] Use only charging equipment verified as compatible with this replacement battery and the radio's charging system. Maximum specified charging current is 1.3A. Verify connector type, polarity, battery dimensions, and charging compatibility before installation. Battery specifications, handling guidance, and technical information are available from Xain-USA.

Product Description

The Xain-USA 11.1V 2600mAh rechargeable Li-ion battery pack (28.86Wh) is designed as a replacement for the Elecraft KXBT2 battery used in compatible Elecraft KX2 and KH1 portable amateur radio transceivers.

Manufactured using a 3S1P configuration of three 18650 lithium-ion cells, this rechargeable battery pack provides 11.1V nominal voltage and a rated maximum continuous discharge current of 5A.

The battery incorporates a 5A Battery Management System (BMS) designed to protect against overcharging, over-discharging, excessive current, and short circuits. An integrated 10KΩ NTC thermistor supports battery temperature monitoring.

UL 2054 certification and UN 38.3 testing provide documented battery safety and transportation testing. MSDS/SDS documentation is available.

Designed for portable radio operation, amateur radio communications, QRP field activities, and compatible Elecraft equipment requiring the KXBT2 battery configuration.

Important: Electrical specifications alone do not establish compatibility. Confirm the battery connector, polarity, physical dimensions, and charging system before installation.

Safe Charging & Handling

Use only charging equipment confirmed to be compatible with this Li-ion battery pack and its protection circuitry.

• Maximum specified battery charge voltage: 12.6V
• Maximum specified charging current: 1300mA (1.3A)
• Verify compatibility with the radio's internal or external charging system.
• Do not short-circuit, crush, puncture, disassemble, or expose the battery to fire.
• Avoid excessive heat, moisture, and direct sunlight.
• Store in a cool, dry location.
• Keep out of reach of children.
• Stop using the battery if it becomes damaged, swollen, excessively hot, or otherwise abnormal.

To ensure the longevity and safety of your lithium-ion (Li-ion) batteries, follow these care instructions:

• Avoid Extreme Temperatures
• Partial Charge is Better
• Avoid Overcharging
• Minimize Exposure to High Discharge Rates
• Store Properly When Unused
• Use Proper Chargers and Cables
• Keep Battery Contacts Clean

We ship our products using USPS Ground Advantage 2-5 Delivery. Please note that USPS may experience delays in its network.

Refer to your receipt email for the tracking code to view updates.

Warranty: Products advertised with a one-year warranty are covered against manufacturing defects. Check this listing for the applicable warranty. Contact our U.S.-based team with your order number and photos for a warranty or performance issue.

Standard returns: Request within 30 days of delivery. Items must be unused, uninstalled and complete in their original packaging; exclusions apply.

Return shipping: The buyer pays return shipping and prints the label. For a damaged, defective or incorrect item, contact us first to confirm the resolution and shipping arrangements. A prepaid label is not automatic.

Read the full return policy and warranty guidance or email support@xain-usa-marketplace.com.