![Tenergy 2-bay Universal Battery Charger for Li-ion/NiMH with LCD, Micro USB input - US Airsoft, Inc. Tenergy 2-bay Universal Battery Charger for Li-ion/NiMH with LCD, Micro USB input - US Airsoft, Inc.](https://cdn.shoplightspeed.com/shops/628197/files/57391059/tenergy-tenergy-2-bay-universal-battery-charger-fo.jpg)
Tenergy 2-bay Universal Battery Charger for Li-ion/NiMH with LCD, Micro USB input - US Airsoft, Inc.
![I just bought my first HPA build used. Two questions. What kind of smart charger should I get for this tiny 7.4v battery and what is that white paper looking thing inside I just bought my first HPA build used. Two questions. What kind of smart charger should I get for this tiny 7.4v battery and what is that white paper looking thing inside](https://preview.redd.it/i-just-bought-my-first-hpa-build-used-two-questions-what-v0-8jk2zz93hjsa1.jpg?width=3024&format=pjpg&auto=webp&s=c6f87a0d3f8a7b0a56519f402938c63967cf86db)
I just bought my first HPA build used. Two questions. What kind of smart charger should I get for this tiny 7.4v battery and what is that white paper looking thing inside
![Amazon.com: Clover Airsoft - Amped HPA 7.4V 250 MaH LiPO Battery - JST Connector : Sports & Outdoors Amazon.com: Clover Airsoft - Amped HPA 7.4V 250 MaH LiPO Battery - JST Connector : Sports & Outdoors](https://m.media-amazon.com/images/I/51ObrKsRchL._AC_UF894,1000_QL80_.jpg)