Will this external power supply work on my laptop?

[CaptainTom]

I recently bought a Sager NP7330 gaming netbook and I love the thing. However it is clear that they compromised on the battery life quite a bit. So I have found a couple of external laptop chargers and I want to know if they will work, and work safely.

Important info:
-Included power supply is 19.5V, 6.15A, and thus provides 120w of power.
-I am able to game on my laptop with the GPU at FULL speed (I am talking about a 765m at 1032 core, 5050 Memory) on a ~62kWh battery.

Here are the two chargers:

http://www.amazon.com/Poweradd-trade-LE030-Notebooks-Phones--Compatible/dp/B00DN0KBXU/ref=sr_1_17?s=electronics&ie=UTF8&qid=1377451743&sr=1-17&keywords=external+laptop+battery+19.5v

http://www.amazon.com/Anker-Ultra-High-Multi-Voltage-Notebooks-Compatible/dp/B00B45EOYS/ref=sr_1_1?s=electronics&ie=UTF8&qid=1377452883&sr=1-1&keywords=external+laptop+battery+19.5v

 

[JackNaylorPE]

I would only buy a charger from a Sager / Clevo distributor, one made specifically for that model.

 

[CaptainTom]

I would only buy a charger from a Sager / Clevo distributor, one made specifically for that model.

Did you look at them though? I would if Sager makes what I am looking for. They don't.