Bundle: 4PCs 2600mAh 18650 Batteries with Nitecore D4 Charger 2015 New Universal Battery Charger 1. 100% Customer Satisfaction: 30 Days Free Return or Refund, 5 Years Product Warranty, 12 Hours Reply about Customer Issues. 2. Compatible with: Li-Ion IMR Lifepo4 Ni-MH Ni-Cd 26650 22650 18650 18490 18350 14500 16340 AA AAA C. 3. Excellent Performance: Optimized Charging for IMR Batteries, Charge 4 Batteries Simultaneously, Each Slot Monitors and Charges Independently. 4. Intelligently Charge: Automatically Detects Battery Type, Power Status, Selects the Appropriate Voltage and Charge Mode. 5. Buy Together: Get This Nitecore D4 Charger Bundle with 4 Packs EASTSHINE E35 10A Button Top 18650 Batteries (B0154OC2Q6) together, Can Save $5.95 with Code (CODE4E35).