100 amp marine battery that lasts for a long time and is made of high quality materials. Two F5/T9 terminal bolts with silver plating are included with the battery for cable wiring. Additionally, the container has positive (+) and negative (-) indicators for quick identification of the wiring. Gel batteries are more resistant to thermal runaway and may adapt better to severe temperatures. Heavy robust lead-calcium grids protect against moderate corrosion and allow for a lengthy 15-year standby service life. PROS🟢 ISO9001/CE/ UL listed 15 years float life - longest available CONS🔴 The plastic outside part is not the most durable