21*66*74mm  3.7V 14000mAh 14Ah lithium battery

1.Don’t disassemble or modify the battery

DNK battery pack is packaged by Aluminum laminated plastic film which is easy to be damaged by sharp edge such as pin, needle, edge of devices like nickel tabs, etc. If they have serious damage, electrolyte leakage, short-circuit between positive and negative tabs, etc. It would cause the generation, smoke, rupture, or flaming with mishandling.

2.Don’t incinerate or heat the battery pack

Don’t use or leave battery nearby fire, stove or heated place (more than 130℃). These occur the melting of insulator, damage of safety function, or ignition on electrolyte. In case that separator made of polymer is melted by high temperature, the internal short-circuit occurs in individual cells and then it would cause the generating, smoke, rupture or flaming.

3.Don’t use any damage battery pack

Don’t use the battery that are dented or bent on their edge part. DNK batteries are possible to be damaged by strong mechanical shock and it would cause wire break, short-circuit inside the cell, leakage of electrolyte, etc.

4.Don’t drive a nail into a battery pack, strike it by hammer, or tread it.

As the battery might be broken or deformed and then it will be short-circuited, it would cause the generating, smoke, rupture or flaming.

5.Don’t give battery pack impact or fling it

If the battery is broken, the battery will be charged at abnormal voltage or current and abnormal chemical reaction will occur. It may cause the generating, smoke, rupture or flaming.

6.Don’t make the direct ultrasonic wave power to the battery or soldering near the battery

It may cause serious damage to the batteries. Soldering near the battery may cause damage of the components, such as separator and insulator, are melted by heat, it would cause the gas generating, smoke, rupture or flaming.

7.Don’t use battery nearby the high temperature place or under the blazing sun.

DNK batteries have possibility to be degraded its performance such as capacity, thickness increase, impendence, etc. The battery will be charged at the abnormal chemical reaction occurs in the high temperature place. The thickness change may lead to stressing on battery case/ device, wiring or cell which may have possibility to lead to damage performance.

8.Don’t use the unspecified charger.

If the battery is charged with unspecified condition, there are causes that it will be overcharged or the abnormal chemical reaction will occur in cells. It causes the gas generating, smoke, rupture or flaming.

9.Don’t reverse polarity (and terminals)

On charging, the battery is reversed-charged and abnormal chemical reaction occurs. There may be case that unexpected large current flows on discharging. There causes the generating, smoke, rupture or flaming.

10.Don’t reverse-charge or reverse-connect

The battery has polarity. In case the battery is not connected with charger or equipment smoothly do not force them to connect and do check polarity of battery. If the battery is connected to opposite polarity with charger. It will be reverse-charged and abnormal chemical reaction will occur. It would cause the generating, swelling, smoke, rupture or flaming.

11.Don’t connect battery to the plug socket or car-cigarette-plug

Added high voltage to the battery, the excessive current will flow in it and then it may cause the generating, swelling, smoke, rupture or flaming.

12.Don’t use battery for another equipment

If the battery is used for unspecified equipment, it will deteriorate its performance and cycle-life.

13.Don’t touch a leaked battery directly

In case the leaked electrolyte gets into eyes, wash them with fresh water as soon as possible without rubbingeyes. And then, see a doctor immediately. If leave damaged eyes undone, it will cause eye-trouble.

14.Keep the battery away from babies

Keep the little battery out of the reach of babies in order to avoid troubles by swallowing. In case of swallowing the battery, see a doctor immediately.

15.Don’t get into a microwave or a high pressure container

Because of sudden heat or damage of sealing condition of battery, it may cause the generating, smoke, rupture or flaming.

16.Don’t use a leaked battery nearby fire

If the liquid leaks from the battery (or the battery gives out bad smell), let the battery leave from flammable objects immediately. Unless do that, the electrolyte leaked from battery may catch fire and it would cause the smoke, flaming or rupture of it.

17.Don’t use an abnormal battery, such as leakage, swelling, deformation, etc.

In case the battery has bad smell, it generates, its color change or it is warped in using (includes charging and storage), let it take out from equipment or charger and do not use it. If an abnormal battery is used, it may generate bad performance or damage the device or pack.

FAQ for DNK 1S4P 3.7V 14000mAh Lithium Battery

Q1: What is the configuration and actual dimensions of this 14000mAh battery pack?

A: This battery pack utilizes a 1S4P configuration, which means 4 high-capacity 3.5Ah (3500mAh) cells are connected in parallel to achieve a total of 14000mAh while maintaining a stable 3.7V output. Its precise dimensions are 21 * 66 * 74 mm, making it a highly compact energy solution for devices with limited internal space.

Q2: What are the protective features of the integrated 5A BMS?

A: The pack features a built-in 5A Battery Management System (BMS/PCM) tailored for low-to-medium power devices. This 5A BMS provides comprehensive safety protection against over-charging, over-discharging, short circuits, and over-current, ensuring the 14000mAh pack operates reliably throughout its lifespan.

Q3: What are the ideal applications for a 3.7V 14000mAh battery with a 5A BMS?

A: With its high capacity, compact size (21*66*74mm), and a 5A current limit, this model is perfectly suited for extended-runtime applications that do not require high peak currents. Common uses include:

• IoT Devices & Smart Sensors: For long-term telemetry without frequent maintenance.

• Handheld Industrial Terminals: Such as rugged barcode scanners or backup power for mobile POS.

• Portable Medical Monitors: Ensuring continuous operation of healthcare tracking devices.

• LED Lighting Systems: Portable searchlights or emergency backup power.

Q4: Can the connectors and wire leads be customized for this model?

A: Yes, absolutely. While the physical size is fixed at 216674mm, DNK Power offers full customization for the external connections. You can choose from various connector options (such as JST, Molex, or Hirose) and specify the required wire length and gauge (AWG) to match your device’s motherboard interface.

Q5: How many charging cycles does the DNK 1S4P 14000mAh battery support?

A: Built with Tier-1 lithium-ion cells, this 14000mAh battery pack delivers 500 to 800 full charge-discharge cycles before the capacity naturally drops to 80% of its original rating. Proper storage and charging within standard parameters will maximize its longevity.

Q6: Does this battery pack comply with international shipping regulations?

A: Yes. Even with a large capacity of 14000mAh (51.8Wh), this battery is fully tested to meet UN38.3 and MSDS standards. These certifications are mandatory for compliant and safe international air DDP, sea DDP, or express logistics.