A battery operated sprayer has an elongated handle for gripping by the operator for actuating the sprayer and for supporting the container to which the sprayer is attached, a removable battery pack forms a removable portion of the handle which solely supports a plurality of batteries which may be recharged...http://www.google.com.au/patents/US6811099?utm_source=gb-gplus-sharePatent US6811099 - Battery pack for battery operated sprayer
