I bought these for a halogen flashlight. Now I always have two spare batteries charged up and I never have to buy those expensive batteries again. The fact that it comes with a car charger, makes it even better. Perfect for camping/roadtrips!!Get more detail about Card Kit: 4 Tenergy RCR123A 3.0V 900mAh Rechargeable Li-Ion Protected Batteries with a Smart Charger.
