Newport Vessels Trolling Motor Smart Battery Box Power Center Black Product Dimensions: 17 x 12 x 10-Inch Built-in LED battery meter - measures battery charge level with the push of a button (battery not included). the interior space fits the batteries with group 24 and group 27 sizes External battery ports - safely and easily connect your trolling motor or accessory to the battery ports without opening the box Dual integrated circuit breakers - integrated with 10 Amp and 60 Amp circuit breakers to protect your trolling motor and other accessories from electrical damage Non-slip rubber feet - non-slip feet inserts enable your batter box to stay in its place Direct USB Charger and accessory port - provides one USB Charger and one 12V accessory port for convenient connection of various DC accessories 2 Year Warranty - We stand behind every product we make with industry leading customer service and a 2 year warranty Measure battery charge level with the push of a button. Safely and easily connect your trolling motor or accessory to the battery ports without opening the box. Integrated with 10 AMP and 60 AMP circuit breakers to protect your trolling motor and other accessories from electrical damage. Non-slip feet inserts enable your batter box to stay in its place. Includes one USB charger (5V - 0.5Amp)and one 12V accessory port for charging of accessories. Interior space fits the most common batteries Group 24 and 27. Interior dimensions are 13-3/8&#034; Long x 7-3/8&#034; Wide x 8-3/4&#034; Tall. <span class="a-text-bold">Does this come with a battery?</span> - No. You will have to purchase one separately. <span class="a-text-bold">Does this device charge my battery? </span>- No. You will have to purchase a battery charger. <span class="a-text-bold">How long will this power my devices? </span>- This entirely depends on the Amperage Hour Rating (Ah) of the battery you place inside of it. The Smart Battery Box doesn&#039;t hold any charge. <span class="a-text-bold">Can I charge my battery while it is connected to the Smart Battery Box?</span> - Yes! No need to open up the box. <span class="a-text-bold">Can I use a lithium battery with this box? </span>- Yes! However, the battery reader will not be accurate due to the higher voltage discharge on Lithium batteries. <span class="a-text-bold">Can I place 2 smaller 12V batteries inside and connect them in parallel? </span>- Yes! This keeps the output at 12V and is compatible with the Smart Battery Box. <span class="a-text-bold">Can I place 2 smaller 12V batteries inside the Smart Battery Box and connect them in series? </span>- No! This creates 24V and can damage the Smart Battery Box. <span class="a-text-bold">Can I have 2 Smart Battery Boxes connected in series to power my 24V device?</span> - Yes!