I have an HP Pavilion zd8000 with the following problem and hope someone can have a stab as to where the problem lies - ie the battery or the charger.
Battery will charge via the charger if laptop is off - ie charging light shows on the front panel. (& it does charge up)
Battery doesn't charge when laptop is on (charger plugged in ) & the on-screen icon shows working from battery.
Laptop works on battery for up to an hour before battery is drained.
Laptop won't boot with just the charger connected (battery removed).
Which is faulty? the battery or the charger?