Adafruit Mini Lipo w/Mini-B USB Jack - USB LiIon/LiPoly charger - v1

Battery Packs Lithium Ion Polymer Battery 3.7V 1200mAh (1 piece)

Adafruit PowerBoost 500 Basic - 5V USB Boost @ 500mA from 1.8V+ [ADA1903]

Be oneself 3.7V 500mAh Lithium Polymer mini rechargeable battery 472540 Li-ion Li-Po for #11 keychain camera

Adafruit Gemma - Miniature Wearable Arduino-like Electronic Platform

150mAh 3.7V Li-Poly Battery with JST-PH cable

Lithium Ion Polymer 3.7v Rechargeable Battery 2500mAh 2-pin JST-PH connector by Atomic Market

FLORA - Wearable electronic platform: Arduino-compatible

Adafruit Micro Lipo w/MicroUSB Jack - USB LiIon/LiPoly charger - v1 [ADA1904]

Adafruit 12 RGB LED Neopixel Ring

ADAFRUIT INDUSTRIES 1578 Lithium Ion Polymer Battery - 3.7v 500mAh