Portable power bank is a portable charger that integrates power supply and charging functions, which can charge digital devices such as mobile phones anytime, anywhere or stand by for power supply. Generally, lithium batteries (or dry batteries, less common) are used as power storage units, which are convenient and quick to use.
Sunpal 10Kwh powerwall certificated by UL1642, IEC62619, CE, UN38.3, MSDS.