<p>The battery's proprietary lithium-iron phosphate chemistry takes the hassle out of maintaining and utilizing the power you need. Batteries are meant to be used when you need them and if you need them all the time then lead acid becomes too unreliable and exhausting to keep track of. The lithium chemistry of the battery cuts the weight of the traditional lead acid battery to less than half while providing a massive boost to performance and capacity so you won't miss a single second of runtime. Designed for more than just storing power easily, they're here for you to provide long-lasting peace of mind with their immense durability making it easy to use them in your home, at your job, or for your outdoor needs where trust, safety, and the environment matter most. ExpertPower's lithium battery is the next step to a cleaner, stronger, and safer power solution.</p><br><p><li><b>Nominal Voltage</b>: 51.2v</li></p><p><li><b>Charging Voltage</b>: 57±0.2v</li></p><p><li><b>Rated Capacity </b>: 100Ah (0.2C, 25°C)</li></p><p><li><b>Dimensions (L x W x H)</b>: 19 x 18.9 x 7 Inch</li></p><p><li><b>Weight</b>: 104lbs</li></p><p><li><b>Max. Continue Discharge Current</b>: 100A</li></p><p><li><b>Max. Permanent Discharge Current</b>: 110A 10Sec.</li></p><p><li><b>Max. Continue Charge Current</b>: 50A</li></p><p><li><b>Life Cycles</b>: 2500 with 100% DOD; 3600 with 80% DOD; 7000 with 50% DOD</p></li><p><li><b>Operating Temperature</b>:</p><p>Discharging: -4°F to 140°F<p></p><p>Charging: 32°F to 140°F</p><p><li><b>Storage Duration</b>:12 months at 77°F</li></p><li><b>1 Year Hassle-Free Warranty</b></li></p>