Please note: shipping times are dependent on local USPS locations and service selected. Do not use this adapter to charge your battery Do not short circuit battery or draw more than 20amps continuous (12gauge), 30amps continuous (10 gauge) Disconnect the battery before it reaches 15volts, (prolongs battery life) Do not leave battery charged at 100% for long periods of time, recommended to store battery at 70% charge (prolongs battery life)