Does Bluno Beetle have a Hardware Serial?, can i charge battery to Micro 5 pin?

Can I use the hardware serial using the Rx, Tx terminals of Bluno Beetle?
When I check the product description Pin Mapping, it says Rx(0) and Tx(1) Serial1 and I wonder if Hardware Serial is possible through that pin.
And when using the battery, does it charge through micro5 pins? Or do I have to configure the charging circuit separately?