4-Cell Li-ion battery Connected in Series (4S battery)

High-Efficiency Power: The 4-Cell Li-ion battery Connected in Series (4S battery)

For projects that require a noticeable step up in power without the weight of larger industrial setups, the 4-Cell Li-ion battery Connected in Series (4S battery) provides the perfect sweet spot. By linking four premium lithium-ion cells end-to-end, this configuration multiplies the voltage of a single cell by four, making it a staple power source for mid-sized RC aircraft, portable medical devices, and custom DIY electronics.

Key Technical Advantages

The architectural focus of the 4-Cell Li-ion battery Connected in Series (4S battery) is entirely on delivering punchy, efficient voltage. Here is why this popular setup is so widely utilized:

• Optimized Mid-Range Voltage: Pushing past the limitations of 2S and 3S setups, it delivers a nominal voltage of over 14V to give brushless motors and electronic speed controllers (ESCs) excellent torque and RPM.

• Excellent Power-to-Weight Ratio: The 4-Cell Li-ion battery Connected in Series (4S battery) offers a significant boost in performance while remaining light enough to keep drones agile and handheld devices highly portable.

• Reliable Discharge Rates: Because the cells are wired in a straight series chain, energy flows directly and efficiently, reducing internal resistance and ensuring quick throttle response under load.

⚠️ Important Safety & Charging Instructions

• Always Use a Balance Charger: Only charge using a dedicated LiPo balance charger. Never leave charging batteries unattended.

• Voltage Safety: Never discharge the pack below 3.0V per cell (12.0V total) to prevent permanent battery damage.

• Safe Storage: If storing the battery for more than a few days, transition the pack to its standard storage voltage (~15.2V) using your charger's storage mode. Store and transport in a fireproof LiPo bag.

⚙️ Technical Specifications