More Than Just Parameters - In-depth Analysis of The Five Key Indicators of High-quality Cylindrical 3.7V Batteries

More Than Just Parameters - In-depth Analysis of The Five Key Indicators of High-quality Cylindrical 3.7V Batteries

When choosing a cylindrical 3.7V battery, capacity (mAh) is often the first parameter that users pay attention to. However, the value of a truly high-quality and reliable battery goes far beyond that. It is the result of a complex system engineering, reflected in the following five key indicators.

1. Real capacity and energy density

Capacity is the foundation, but the 'nominal capacity' must be measured under standard conditions. High quality batteries not only achieve nominal values, but also ensure high energy output efficiency at different discharge rates. Our pursuit is to achieve higher energy density with smaller volume and lighter weight.

2. Low internal resistance - the cornerstone of high efficiency

Internal resistance is a parameter that measures the amount of resistance experienced by current passing through the interior of a battery. Low internal resistance means:

Higher discharge efficiency: More electrical energy is effectively utilized, and the battery generates less heat.

Stronger rate performance: Supports high rate charging and discharging, meeting the needs of high-power equipment such as electric tools and drones.

A more stable voltage platform: The equipment operates at a smoother voltage and performs better.

3. Long service life

The lifespan is usually measured by the number of cycles (the number of complete charge and discharge cycles experienced when the capacity decays to 80% of its initial value). High quality batteries can easily achieve a long cycle life of over 500 or even over 1000 cycles through the use of advanced materials, optimized electrolyte formulations, and rigorous process control, bringing lower long-term usage costs to users.

4. Rock solid security

Safety is the lifeline of lithium batteries. This includes:

Structural safety: Multiple safety designs such as explosion-proof valves, PTC (positive temperature coefficient) resistors, CID (current interruption device), etc., automatically activate protection in abnormal situations (such as overcharging, short circuit).

Chemical safety: strict incoming material control and clean production environment to eliminate internal hazards such as metal impurities.

5. Excellent consistency - the soul of battery packs

For scenarios that require multiple batteries to be connected in series/parallel, consistency is of utmost importance. It refers to the high uniformity of parameters such as capacity, internal resistance, and voltage among batteries of the same batch. Naccon ensures that every battery leaving the factory has a high degree of consistency through fully automated production lines and precise capacity sorting systems, which is the foundation for creating safe, durable, and high-performance battery packs.