MoodHoops do not work with regular, store bought rechargeable batteries (NiMh). All MoodHoops can use only a single specialty lithium-ion battery (Li-ion) that cannot be purchased locally, and have special use and safety considerations.
These lithium-ion batteries have more voltage than regular, store-bought NiMh rechargeable batteries and should never be put into any other device.
If you are attempting to use other batteries than the ones provided with your hoop, you most likely have purchased regular NiMh AA rechargeable batteries, as the specialty Lithium-ion batteries used in Moodhoops are not available in most local stores. Regular AA batteries only put out 1/3 of the power needed to properly light up your Moodhoop, so these will not work.
We offer extra and replacement batteries as singles or in 3-packs. Lithium-ion batteries can be purchased for your MoodHoop in our store here: http://moodhoops.com/shop/batteries
Please review the other FAQs about the batteries that come with the hoop and check out the link to the Battery Safety page below.
Please review our Battery Safety page, which contains VERY important information regarding Battery Safety, Care, and Charging. Please also refer to the Instruction Manual that is sent with each hoop.