124065 3.7V 4000mAh LiPo Battery

Flagship Capacity. Uncompromising Performance.

The 124065 3.7V 4000mAh 14.8Wh Lithium Polymer Battery represents the pinnacle of compact high-capacity LiPo technology. With an industry-leading 4000mAh capacity, 14.8Wh energy rating, built-in PCM multi-protection, and a precision 12mm thick form factor — this cell is engineered to power the most demanding smartphones, portable power banks, tablets, and smart devices with unmatched runtime and rock-solid reliability.

✅ Key Features

🔋 4000mAh / 14.8Wh Flagship Capacity – All-Day Power & Beyond Delivers exceptional, uninterrupted runtime for the most power-hungry portable devices on the market. Keeps smartphones fully powered through heavy all-day usage, power banks loaded with enough energy to charge multiple devices multiple times, and tablets running through extended work and entertainment sessions — all from a single, compact cell that punches well above its weight.

📐 12mm Thick High-Density Profile – 124065 (12 × 40 × 65mm) The 12mm thickness gives the 124065 a decisive energy density advantage over standard 10mm cells with the same length and width. More capacity in the same compact footprint — ideal for smartphones, power banks, and devices where maximum energy storage within a defined form factor is the design priority.

🛡️ Built-in PCM 4-in-1 Protection – Engineered for High-Capacity Safety High-performance Protection Circuit Module (PCM) specifically optimized for large-capacity cell operation — providing comprehensive four-layer defense against overcharge, over-discharge, overcurrent, and short circuit. Prevents overheating, swelling, and fire risk under high-power charging and discharging conditions, ensuring safe, stable operation throughout the battery’s full lifecycle.

⚡ Ultra-Stable Discharge Platform – Smooth Smartphone Performance Advanced polymer electrolyte system delivers an exceptionally flat, stable discharge curve with minimal voltage deviation throughout the full discharge cycle — ensuring consistent, clean power delivery for smartphones and tablets, preventing performance throttling, app crashes, or unexpected shutdowns caused by voltage instability.

♻️ 800+ Long Cycle Life – Far Beyond Industry Standard Rated for over 800 full charge/discharge cycles — 60% beyond the industry-standard 500-cycle benchmark. Combined with ultra-low self-discharge rate and excellent long-term capacity retention, this battery delivers outstanding total value and dramatically reduces replacement frequency — a major selling point for end-user satisfaction and brand loyalty.

🏆 Grade A Cells – Premium Consistency at Every Scale Every cell undergoes rigorous multi-stage electrochemical performance testing with capacity variance tightly controlled within ±20mAh and uniform internal resistance maintained across all batches — guaranteeing the same premium quality standard whether you order 10 samples or 10,000 units.

🏭 Factory Direct – Full OEM/ODM Capability Manufactured on our own ISO-certified production line with comprehensive in-house quality control. Full OEM/ODM support available including custom capacity specifications, dimensional modification, wire harness configuration, connector type, LOGO printing, label customization, and branded packaging — complete one-stop service from prototype to mass production.

🌍 CE Certified & Globally Compliant CE / UN38.3 / RoHS / MSDS / IEC62133 certified — fully compliant with EU market entry requirements and international air freight regulations. Complete documentation package provided for seamless customs clearance across all major global markets.

📦 In Stock – Ready for Immediate Dispatch Strong warehouse inventory available for fast fulfillment across all order sizes. From R&D samples to high-volume production runs — competitive lead times and comprehensive global logistics support guaranteed.

📦 Specifications

🔌 Compatible Applications

📊 Capacity Comparison – 124065 vs Common Models

✅ The 124065 offers the best balance of high capacity + compact footprint in the 12mm thickness class — making it the go-to choice for smartphones and high-capacity power banks.

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