Item Specification
Product Name: DNK-LTB3S1PC18H 11.1V 3.5Ah
BATTERY SPECS:
Type: Lithium battery pack
Specification: 11V 3.5Ah
Chemistry: Li-ion
Charge: 4.2V ≤2 A (can be customized)
Discharge: 11V ≤3 A (can be customized)
BMS: 3A(Can be changed)
Dimension: 68*19*54mm(can be customized)
Wire Length:183mm(can be customized)
Cycle Life: 500(80%)
Weight: 161g
Charge Temperature: 0~45ºC
Discharge Temperature: -20~60ºC
Storage Temperature:
1 year: -20~25°C
3 months: -20~45°C
1 month: -20~60°C
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.
Q: What does “11.1V 3.5Ah” actually mean?
A: 11.1V is the nominal voltage, which is standard for a 3-series (3S) Lithium-ion pack (each cell at 3.7V). 3.5Ah (or 3500mAh) refers to the capacity, indicating the amount of energy the battery can store. The total energy of this pack is 38.85Wh .
Q: What is the voltage range of this battery pack?
A: The voltage typically ranges from 9.0V (fully discharged) to 12.6V (fully charged). Please ensure your device or controller is compatible with this range.
Q: Can I charge this 11.1V battery with a 12V automotive charger? A: No. You must use a dedicated Lithium-ion battery charger with a constant current/constant voltage (CC/CV) profile and a maximum output voltage of 12.6V. Using an incorrect charger can lead to overheating or permanent damage.
Q: Does the battery pack include a BMS (Protection Circuit)? A: Yes, all our packs come with a built-in BMS (Battery Management System) as standard. It protects against over-charge, over-discharge, over-current, and short circuits to ensure maximum safety and longevity.
Q: How long will this battery power my device? A: It depends on your device’s power consumption. You can estimate the runtime using this formula: Runtime (hours) = 38.85Wh / Device Power (Watts). For example, a 10W device will run for approximately 3.8 hours.
Q: What is the maximum continuous discharge current? A: Our standard 3.5Ah pack supports a continuous discharge of 1C to 2C (3.5A to 7A). If your application requires a higher burst current (e.g., for motors or power tools), please contact us for a customized High-Rate version.
Q: How should I store the battery if I don’t use it for a long time? A: Store the battery in a cool, dry place at approximately 40% to 60% charge (around 11.4V). Avoid storing it fully charged or completely empty. We recommend a maintenance charge every 3 months.
Q: Is this battery pack waterproof? A: Our standard packs are finished with PVC heat shrink or plastic casing, which provides basic moisture resistance but is not waterproof. If your project involves outdoor or underwater use, please request an IP65 or IP67 rated enclosure.





































