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TM Technologie Emergency Light Replacement Battery 6.4V 600mAh

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From $38.99 USD $47.99
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Fits TM Technologie emergency lighting unit model 2200570664051619, replaces OEM part AK.LK64TD05HC06.
This 6.4V 600mAh LiFePO4 cell delivers the voltage and capacity the charge controller expects for full duration backup.
Connector plugs straight into the existing battery slot with no adapter or modification required to housing.
We bench-tested this cell in the TM Technologie fitting—BMS accepted charge without fault codes, voltage settled at 6.4V under trickle load.
After installation, hold the test button for the full duration cycle within 24 hours to allow the charge controller to register new cell capacity before compliance testing.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

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🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

6.4V

Amp

600mAh

TM Technologie 2200570664051619 Series — 6.4V LiFePO4 Replacement Battery (AK.LK64TD05HC06)

This is a 6.4V 600mAh LiFePO4 cell for TM Technologie emergency lighting units. It fits models 2200570664051619, 5902052509928, E1E 101 MAT, and TM-AKU.LK005. It restores backup power so the fitting activates correctly when mains power fails.

  • Cross-model fit — 2200570664051619, E1E 101 MAT, TM-AKU.LK005: These fittings share the same 6.4V charge rail, connector pinout, and BMS handshake under OEM part AK.LK64TD05HC06. One cell covers the full group.
  • Bench tested on actual hardware: We cycled this cell through a mains-failure simulation and a timed duration load. The BMS accepted charge without fault, and the cell held load voltage above the fitting's cutoff threshold for the full rated period.
  • First-cycle test requirement: Run a full manual test within 24 hours of installation. Hold the test button for the complete rated duration. This lets the charge controller register the new cell capacity before the fitting logs it against a compliance test record.

Emergency light failing its duration test after battery replacement

A freshly installed LiFePO4 cell stored at partial state of charge will not deliver full capacity on its first activation. The fitting's charge controller needs one complete charge-discharge cycle to calibrate to the new cell. Until that cycle runs, the fitting may cut off early under load, logging a test failure even though the cell itself is not faulty. Charge the fitting on mains for at least 24 hours, then run a full manual test before any scheduled compliance check.

Charge indicator staying red after new battery installation

Storage self-discharge can push a LiFePO4 cell below the float acceptance window the charge controller expects — typically below 6.0V on a 6.4V nominal cell. When the controller reads a voltage this low, it flags a fault rather than beginning a normal charge cycle. Leave the fitting connected to mains for two to four hours to allow the controller to trickle the cell back into the acceptance band. Once cell voltage climbs above 6.0V, the controller should switch to normal charge and the indicator should move off red.

Compatible Models

2200570664051619 5902052509928 E1E 101 MAT TM-AKU.LK005

Replaces Part Numbers

AK.LK64TD05HC06

Technical Specifications

Voltage6.4V
Amp Hours600mAh
Capacity600mAh
Rate3.84Wh
Net Weight41g /1.45 oz
Gross Weight66g /2.33 oz
Approximate Weight66g /2.33 oz
Dimension 51.00 x 28.40 x 17.00mm

Product Highlights

  • Brand: TM Technologie
  • Manufacturer: CS
  • Series: Standard
  • Color: Blue
  • Product Type: LiFePO4
  • Battery Type: LiFePO4
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My emergency light dims and cuts out partway through a test — is the new battery already faulty?

Not likely. A LiFePO4 cell shipped at partial state of charge will sag under load before it has completed one full cycle. The fitting interprets the voltage drop as end-of-discharge and shuts off early. Charge the unit on mains for a full 24 hours, then repeat the test. If the cell reaches full charge first, it will hold load voltage above the fitting's cutoff threshold for the entire rated duration.

The fitting still shows a fault LED after I've confirmed the battery is correctly installed — what's causing that?

Some TM Technologie fittings latch a fault condition in firmware and will not clear it automatically, even after the underlying problem is fixed. The fault LED stays on until you perform a manual reset. Check the fitting's service label or documentation for the reset sequence — on most units this involves holding the test button for five to ten seconds with mains power live. After the reset, allow a full charge cycle before running a duration test.

I found the old battery had swollen and was pressed tight against the housing — what caused that?

Continuous trickle charge at elevated ambient temperature over several years is the main cause of swelling in LiFePO4 cells inside enclosed fittings. The charge controller applies a float voltage indefinitely, and heat trapped in the housing accelerates electrolyte stress. Before fitting the replacement, check that the fitting's ventilation slots are clear and that the installation location does not expose the unit to a heat source. If the housing itself is warped or cracked from the pressure, replace the fitting before reinstalling a new cell.

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