When searching for a replacement laptop charger it's important to choose the correct one. A lot of people rush out and find the cheapest one on the market however this is not the best policy. These cheaply made laptop adapters are not made to comply with any safety standards and we've heard horror stories of them going on fire or causing electric shocks. At Which Laptop we believe that supplying a quality, reliable laptop power supply is the most important factor and all our chargers are genuine products. If you're looking for a HP 510 Charger or a Advent 7109 Charger we'll have an original one in stock at a far lower price that buying it direct from the manufacturer.