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Black rectangular Li-ion battery pack, 5000mAh 7.4V

KingSener

KingSener ZNS-09H 5000mAh 7.4V Li-ion standard battery

SKU CH-M3SZ-V7AYS MPN ZNS-09H

A 7.4V 5000mAh lithium-ion replacement battery for compatible smart door locks

  • Battery voltage rating7.4 V
  • Battery capacity5,000 mAh
  • Long-lasting power for smart locks with 5000mAh capacity
  • Stable 7.4V output keeps the lock responsive
  • Li-ion chemistry delivers reliable recharge cycles
  • Black finish matches common door-lock housings
  • Direct ZNS-09H fit avoids wiring changes

What this battery replaces

The KingSener ZNS-09H is a 7.4V 5000mAh lithium-ion cell built to replace the original power pack in compatible smart door locks. It arrives new and ready to install. The black housing matches the factory look.

Compatibility and limits

This unit suits owners whose lock uses the exact ZNS-09H part number and 7.4V voltage. Buyers who need a different voltage, a higher capacity, or a non-standard connector should look elsewhere. Always confirm the interface before ordering.

Deciding specification

The 7.4V nominal voltage is the single figure that determines whether this pack will work. If the original battery shows a different voltage the lock will not operate correctly.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $23.99
Pricier than about 81% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameKingSener
Model nameZNS-09H
Part numberZNS-09H
Power
Battery voltage rating7.4 V
Battery capacity5,000 mAh

Questions about this item

Does the lock I own already need a 7.4 V Li‑ion pack with the exact ZNS‑09H connector to accept this battery?

Yes — the ZNS‑09H is a 7.4 V, 5000 mAh Li‑ion cell built to match the original ZNS‑09H part number, so the lock must use that same voltage and connector.

Will this 5000 mAh pack still power a lock that originally shipped with a lower‑capacity ZNS‑09H battery?

It will; the higher 5000 mAh capacity simply extends runtime while delivering the same 7.4 V the lock expects.

How can I confirm the new ZNS‑09H is working correctly after I install it?

The lock should power up normally, report a full charge state and operate through several lock/unlock cycles without a low‑battery warning.

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