This is a Brand New 230W Replacement Dell PN402 Power Supply.The dell pn402 ac adapter guaranteed to meet or exceed your originals performance, comes with a 1 year warranty.New Replacement Dell PN402 Laptop AC Adapter 230W 19.5V 11.8A with Barrel with Center Pin Plug, Power Cord included. Hi-Quality & Cost-effective Battery Charger works for Your Laptop.
Sure, we guarantee our replacement adapter work with your laptop or netbook if your adapter part number or laptop model number is included in our compatible list. Our adapter has +/- 1 voltage allowance. For example, our 19V adapter automatically switches its output voltage to 18.5V, 19V, 19.5V, or 20V accordingly when it is plugged in. It will be no problem if the output current (A - Amperage) of your original adapter is smaller than ours. For example, our 90W adapter (19V x 4.73A) can replace your genuine 65W (19V x 3.42A) or 75W (19V x 3.95A) adapter without any problems as long as they have same output voltage and connector tip. For tip size and shape, you can put your mouse on the adapter picture in product page to get a close-up image and read the details. Higher power adapter has no impact on your laptop because the laptop drawsbsas as many amps and watts as it needs while the adapter just provides as much power as the laptop draws.
Prevent the Memory Effect -Keep the dell pn402 adapter healthy by fully charging and then fully discharging it at least once every two to three weeks. Exceptions to the rule are Li-Ion adapters which do not suffer from the memory effect.
Keep the laptop Adapters Clean - It's a good idea to clean dirty dell pn402 ac adapter contacts with a cotton swab and alcohol. This helps maintain a good connection between the adapter and the portable device.
Exercise the Adapter - Do not leave the adapter dormant for long periods of time. We recommend using the adapter at least once every two to three weeks.
If you don't plan on using the dell pn402 charger for a month or more, store it in a clean, dry, cool place away from heat and metal objects. NiCad, NiMH and Li-Ion adapters will self-discharge during storage; remember to recharge the adapters before use.