Mi Power Banks(10400 volts).. Automatic protection to the motherboard and battery when short circuit occurs. Water resistant. Heat-sensitive and temperature control mechanism ensures Li-ion batteries operate within a safe range. Power button can be used to reset the power bank in unstable environment.Monitors output current and shuts off when current exceeds the maximum limit to protect the device. Detect when the charger is inserted incorrectly and automatically stop charging. OVP circuit prevents voltage surges from damaging the device. Japanese technology is adopted to prevent overcharging and over-discharging from damaging the Li-ion batteries. Monitors output voltage and shuts off when voltage exceeds the maximum limit to protect the device. It original with warranty of 6 months .we can deliver it to you if you are around town, just call +256 200903677 or come to our shop on IVORY TOWER right opposite pioneer mall parking.