Amazon.com: Battery Replacement for AKAI EWI 5000 5000 Solo 1ABTUR18650ZY01 (3400mAh/3.7V) : Health & Household
Amazon.com: Cootime Professional Rechargeable Li-Ion Battery for AKAI EWI 5000 EWI Solo with Extension Cable and USB 2.0 Male Charging Cable Replacement Lithium Ion Battery Pack PH2.0 (TZ16650ZY/Green/Sales Set) : Health &