is charging incorrectly

[joshuacox01]

the phone was sitting on the charger for over 1 1/2 hours and is only gone up to 12%. the phone is a lg 4g lte. how do i fix this?

 

[rgd1101]

Is this a new phone? new battery? new charger?

 

[joshuacox01]

Is this a new phone? new battery? new charger?

its 6 months old