External Laptop Battery Charger for HP Notebook 15-AC1xxxx, 250 G4 807 – direct-charging
Amazon.com: GreenTech New 807957-001 HS04 Replacement Battery for HP 240 G4, HP 240 G5, HP 245 G4, HP 245 G5, HP 250 G4, HP 250 G5 14.8V 41Whr 4 Cell Battery 807612-421
2200mAh Laptop Battery For HP 240 250 255 G4 G5 Notebook 807956-001 HS03 HS04 | eBay