CITYORK Rechargeable Speaker Battery 4800mAh Replacement for JBL USE PartyBox 520 / PartyBox 720 Portable Speaker

1.Please fully charged battery before first use. 2.If you are not going to use the battery for a month or longer store it in a clean dry cool place away from fire and water. 3.Please recharge it after long storage . As Ni-Cd/Ni-MH and Li-ion batteries will self-discharge during storage. 4.Do not Separation extrusion and impact. 5.Avoid overcharge and over discharge. Please stop charging when the battery is 100% charged. 6.Avoid exposing to high temperatures 140°F/60°C. Keep the battery power between 5%-95%.