<p><strong><span style="font-size:20px">Features:</span></strong> </p><p>1. Welding-free products, users can disassemble and replace the battery freely. </p><p>2.With DC isovoltage UPS function, automatic charge/discharge management without manual participation. </p><p>3. Covering optical cats, routers, surveillance cameras, etc. commonly used 5V, 9V, 12V three voltages </p><p>4. Strict quality control to ensure long-term stable operation and prolong service life. </p><p>5. Compact size, easy to carry, stable performance </p><p> </p><p><strong><span style="font-size:20px">Parameter:</span></strong> </p><p>Capacity: loadable battery capacity: 3 * 3.7V * 3400mah = 37 watt-hours; (batteries provided by the user) </p><p>Output power: Independent output 12V3A, 9V1A, USB5V2-3A without considering UPS input. </p><p>Whether voltage regulator: not regulated, 3 batteries in series direct output, full 12.6V, low voltage protection 8V, voltage increases or decreases with the amount of electricity Application Type: This product is designed for MODEM, router, surveillance camera equipment specially designed </p><p>Battery type: 3.7V cylindrical 18650 battery </p><p>UPS input voltage: 12-13V range charging, can not exceed 13V, below 12.6V can not be filled, recommended 12.7V </p><p>UPS input power: input adapter power must meet &gt;= load power + internal battery charging power of 6 watts; the greater the stability of the larger power </p><p>Protection circuit parameters: overcharge protection: 4.25V * 3; low voltage protection: 2.75V * 3; overcurrent detection voltage: 0.1V +-0.025V </p><p>Temperature range：-20~60℃ </p><p>DC interface standard: DC5.5*2.1mm (inside positive and outside negative) </p><p> </p><p><strong><span style="font-size:20px">Precautions:</span></strong> </p><p>1. Spring to the negative pole, copper to the positive pole, do not install the reverse, install the reverse will burn! </p><p>2. The use of high-quality batteries and require strict pairing, composed of battery packs of each individual battery should be the same parameters as far as possible! </p><p>3.This product can only use flat 18650 batteries, pointed batteries longer than 2MM, can not be used! </p><p> </p><p><strong><span style="font-size:20px">Package include:</span></strong> </p><p>Welding-free battery box * 1</p><p></p><br/>