High-Tech Battery Solutions IncAnswer
Oct 20, 2025 - 01:16 PM
Without knowing the exact power draw of your headlamp, I can't give a precise runtime. However, these UltraLast 3.7V 2600 mAh 18650 Lithium Ion batteries are high capacity and rechargeable. Compare their 2600 mAh rating to your current batteries—if your old ones have a lower mAh, these should last longer between charges. This should help you estimate how much more runtime you’ll get with these batteries in your headlamp.
