VINTRONS Replacement Battery for T-Mobile Spark

will first need to purchase to cr2032 batteries they're commonly found at most stores remove the sensor stick from the bottle lid and unscrew the lid from the sensor stick the battery pack will be located within the lid and you can remove the battery pack by hitting it against your hand this is what the battery pack looks like remove the clear rubber ring from around the battery pack next carefully remove the small metal clip that is creating a contact between the batteries within the pack you will want to tweezers for the next part remove the batteries from the classic pack using the tweezers be sure to dispose of the batteries appropriately take the two new cr2032 batteries and insert them in the battery pack the plus sides will be facing outwards both on the top and the bottom replace a small metal clip to hold them in place take the clear rubber ring and place it around the battery