Capacity 11.1V 9Ah, DC port: Inner Positive(+), Outer Negative(-). The size of the 12V output port is DC5521, 9V port is DC5525. 5V USB 2A Max. 9V/1A, 12(voltage range is 12.6V~9.0V)/6AMax. Three port DC output multi-function lithium ion battery pack. Compatible with any 11.1V 12V LED strip light products, CCTV Camera, IP Camera, Essential Oil Diffuser, LED Panel, Amplifier, Modem, Car DVR, Spectra S2 breast pump. 5V USB for smartphone and more. NOTE: our package not include the USB cable. This lithium ion battery pack also runs some of robotic telescopes fine. 9V DC output suitable for Guitar Multi-Effects Pedal Processor and more. Please note our battery DC port is inner Positive(+), outer Negative(-). But most guitar pedal input port is inner Negative(-), outer Positive(+). If you want to use this battery to power the guitar pedal, you must need a reversed polarity cable to connect the pedal with our battery, or will damage the guitar pedal. Our package not include this reversed polarity cable. Must be confirm the polarity before you connect it. Please be sure to turn on the switch of the battery (at position "-") for charging. If not, it will not charge. If you have any questions, please contact us to get support, we will do our best to help you. TalentCell Lithium-ion Battery Pack is suitable for any 12V/9V/5V DC electronic device.
The li-ion battery can be recharged without limitations, as lithium battery there is no memory effect, which helps the battery pack last longer.

Package content:
1x DC 12V Rechargeable Li-ion Battery
2x Power Cable
1x AC charger for battery

NOTES
Do not use the power bank in places with high humidity or where it may be exposed to wet.
Do not modify or disassemble the power bank.
Do not throw the power bank into fire or water.
Do not place the power bank during charging on flammbable materials such as in the bed or carpets.
If you have any questions, please contact us to get support, we will do our best to help you.