HomeProduct Batteries1 Lithium Polymer batteries required. (included)Page 2 1 Lithium Polymer batteries required. (included) Filter Showing 13–13 of 13 results Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sort by editor review Added to wishlistRemoved from wishlist 0 Add to compare WHOOP Battery Pack 4.0 – Portable, Wearable, Water-Resistant Charging Component for WHOOP 4.0 Wearable Health, Fitness & Activity Tracker, Onyx Added to wishlistRemoved from wishlist 0 Add to compare $49.00 ← 1 2