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Black rectangular lithium-ion battery pack with wire connector

KingSener

KingSener TXD-68B 7.4V 5000mAh Replacement Battery

SKU CH-N037-4CQ31 MPN TXD-68B

7.4 V lithium-ion pack rated at 5000 mAh powers compatible smart door locks

  • Battery voltage rating7.4 V
  • Battery capacity5,000 mAh/37 Wh
  • 4 V output powers compatible smart locks
  • 5000 mAh capacity extends time between charges
  • 37 Wh energy rating supports long standby
  • Li-ion cells deliver stable voltage under load
  • Replaces TXD-68B and TZ68-B part numbers

Compatible Smart Lock Battery

The KingSener TXD-68B is a 7.4V 5000mAh lithium-ion replacement cell built for compatible smart door locks. It delivers 37Wh of energy and uses a P+P+P-P- pin layout. The black pack arrives new and ready to install.

Owners Needing Direct Voltage Match

This unit suits owners whose lock requires a 7.4V supply and the exact TXD-68B or TZ68-B form factor. Buyers whose hardware calls for a different voltage, capacity or connector layout should look elsewhere.

7.4V Output Decides Fit

The single specification that decides compatibility is the 7.4V output; the lock must be designed for this voltage. Confirm the required pin arrangement and physical dimensions before purchase.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $23.99
Cheaper than about 67% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameKingSener
Model nameTXD-68B
Part numberTXD-68B
TZ68-B
Power
Battery voltage rating7.4 V
Battery capacity5,000 mAh/37 Wh

Questions about this item

How long will the 5000mAh capacity keep my smart lock running on a single charge?

The 5000mAh capacity provides 37Wh of energy. Actual run-time depends on how often the lock activates, but the cell stores enough charge for extended typical use between recharges.

What does the 7.4V rating mean for compatibility with my lock?

The pack delivers a nominal 7.4V through a P+P+P-P- pin layout. It matches locks designed for this exact voltage and connector arrangement.

Will the TXD-68B fit the battery compartment of my TZ68-B lock?

This replacement is built to the TXD-68B and TZ68-B form factor. It matches the original dimensions and black casing for direct installation.

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