ENEGON 4 Pack D Batteries 12580mWh Rechargeable Lithium-ion D, 1.5V LR20 Battery with USB-C Cable for Floodlights, Camping Lights, Radios, Security light, Touch-sensitive LED Display.

12580mWh High-Capacity Lithium-Ion D Battery: Unlike standard NiMH D batteries that lose voltage as they drain, the ENEGON lithium-ion D battery maintains a constant 1.5V output throughout its full 12580mWh capacity. This extends device runtime by up to 40% compared to alkaline D batteries in lab-tested conditions. Compatible with large flashlights, portable radios, tape recorders, large electric toys, Water Heater,high-power remote controls, and gas stoves. Built-In USB-C Charging, No Dedicated Charger Needed: Unlike traditional rechargeable D batteries that require a separate bulky charger, each ENEGON battery has a built-in USB-C port. The included 4-in-1 cable lets you charge four batteries simultaneously from any USB-C power source — laptop, car charger, or power bank. The indicator light flashes while charging and remains steady when fully charged, keeping you informed of the battery’s charge status at all times. Instant Battery Level Check With 4-Led Display: Unlike disposable D batteries where you cannot tell remaining power, simply press the touch sensor on top of each ENEGON battery and four LED indicator bars light up immediately to show remaining charge (4 bars=100%, 3=75%, 2=50%, 1=15%). This eliminates the guesswork of dead batteries mid-use and helps you plan recharging before your next camping trip or emergency. Constant 1.5V Output Until 15% Remaining: Unlike alkaline D batteries whose voltage drops from 1.5V to below 1.0V as they drain — causing flashlights to dim, fans to slow, and radios to crackle — ENEGON lithium-ion batteries maintain a steady 1.5V output until only 15% capacity remains. This means your high-power devices run at full performance throughout the entire battery cycle, not just the first few hours. 6-Layer Safety System With Overheat and Short-Circuit Protection: Lithium battery safety is a top concern — the ENEGON D battery includes a built-in intelligent 6-layer protection chip that continuously monitors charging and discharging to prevent overcharge, overvoltage, overcurrent, overdischarge, overheating, and short-circuit conditions. Unlike older NiMH batteries with memory effect, lithium-ion chemistry supports free charging and discharging without capacity loss, ensuring safe, reliable power for indoor use and outdoor adventures alike. 3.5A High-Drain Output for All D-Cell Devices: With a 3.5A maximum discharge current and true 12580mWh capacity, the ENEGON rechargeable D battery handles high-drain devices that standard alkaline D batteries struggle with — flashlights stay bright, fans run at full speed, and camping lights last through the night. The steady 1.5V constant-voltage output ensures reliable startup even for voltage-sensitive devices like kids' electric toys and emergency lighting, where a weak battery can mean a toy that won't move or a light that fails when you need it most.