7.4V 5000mAh Rechargable Li-ion Pack ZNS-09E1 Replacement Battery For ZNS-09E1 Smart Lock

Specifications

	Brand Name:	Softchip
	Place of Origin:	Guangdong, China
	Model Number:	ZNS-09E1, ZNS-09
	Size	18*60*102mm
	Volt	7.4V
	Capacity	4200mAh/5000mAh
	Usage	For ZNS-09E1 Smart Lock
	Certificate	Ce Rosh EMC
	Warranty	12 months
	OEM/ODM	Acceptable

Product Description

Experience uninterrupted home security with our Premium ZNS-09E1 Replacement Battery. Engineered specifically for high-end smart door locks, this 7.4V rechargeable Lithium-ion pack is the definitive power solution for the ZNS-09E1 and ZNS-09 series.

While many standard batteries offer limited longevity, our upgraded 5000mAh high-capacity version ensures your smart lock remains operational for extended periods, reducing the hassle of frequent recharging.

With a precision-engineered, it slides perfectly into your lock's battery compartment, providing a snug fit and consistent contact. Whether you are upgrading your current capacity or replacing a degraded cell, this battery delivers the reliability your smart home deserves.

Application

•Professional Smart Lock Maintenance: The ideal OEM-standard replacement for ZNS-09 / ZNS-09E1 battery modules.

•High-Traffic Entryways: Perfect for residential homes, Airbnb rentals, and office buildings where smart locks are cycled multiple times daily.

•Emergency Preparedness: An essential backup power source to keep on hand, ensuring you are never locked out due to a dead battery.

•Smart Security Ecosystems: Fully compatible with locks requiring stable 7.4V output to maintain Wi-Fi connectivity and biometric sensor accuracy.

Production Line

Workers Production

Quality Inspection Area

Product Package

Competitive Advantage:

I.Industrial-Grade Energy Density:

Unlike generic 4200mAh batteries, our 5000mAh cell uses premium Grade-A lithium-ion technology, offering up to 20% more standby time and longer overall lifespan.

II.Advanced Battery Management System (BMS):

Equipped with an intelligent protection chip that prevents over-charging, over-discharging, short-circuits, and overheating, significantly extending both the battery and the lock's life.

III.Seamless Integration:

Designed with the exact dimensions ($18 \times 60 \times 102$ mm) and connector interface of the original ZNS-09E1, ensuring a plug-and-play experience with no modifications required.

IV.Eco-Friendly & Cost-Effective:

Supports hundreds of charge cycles, eliminating the waste of disposable batteries and saving you money on long-term maintenance.

V.Optimized Voltage Stability:

Maintains a consistent 7.4V discharge curve, preventing smart lock malfunctions or "Low Battery" false alarms caused by voltage drops.

Certification

FAQ

Q1: Is the 5000mAh battery compatible with my ZNS-09 lock that originally used a 4200mAh battery?

Yes, absolutely. The 5000mAh and 4200mAh versions share the exact same dimensions ($18 \times 60 \times 102$ mm) and 7.4V voltage. The 5000mAh version simply provides a higher energy density, meaning your lock will last longer between charges without any compatibility issues.

Q2: How long does it take to fully charge the ZNS-09E1 battery?

Typically, it takes about 4–6 hours to reach a full charge using a standard 5V/2A USB charger. We recommend charging the battery fully before its first use to calibrate the power management system.

Q3: How do I know when it’s time to replace my smart lock battery?

If you notice your smart lock giving frequent "Low Battery" alerts even after a full charge, or if the motorized bolt sounds sluggish, it is likely time for a replacement. Most Lithium-ion lock batteries perform optimally for 2–3 years.

Q4: Can I leave the battery charging overnight?

Our ZNS-09E1 battery features a built-in Overcharge Protection (BMS). However, to prolong the overall lifespan of the lithium cells, we recommend disconnecting the charger once the indicator light shows the battery is full.

Q5: Is this battery safe to use in extreme weather?

This battery is designed to operate stably between -10°C to 60°C. If you live in an area with extreme winters or summers, the premium casing and stable 7.4V chemistry ensure consistent performance compared to generic alternatives.