Hello everyone

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I recently purchase a Nitro 5 and everything's been great so far. Because I'm returning to university, I need to buy an spare charger so I don't have to take the charger with me everytime I move from my house or my apartment. The original charger that came in the box is a 19V - 7.1A resulting in a whopping 135W so it is pretty powerful. I'm pretty sure that charging the battery slower (less watts) would relieve stress from the lithium ion battery and help keep temperatures low. Besides that, I'm not interested at all to having my laptop charged in an hour or so because I always have a plugged nearby, I think that the trade is worth in cellphones. While I was searching in different websites to purchase the spare charger, I found that Nitro 5 Spin and several Aspire E & R models have a 65W charger by default, they are not only less than half the price and way lighter and less bulkier than the 135W Nitro 5 charger.

Do you guys think that it'd be fine for the laptop if I get one of those 65W charger? Like I said I don't care if it takes longer to charge, but I want to keep temperatures down, prolong my battery life span, and have a lighter and less bulkier charger in my backpack. Do you think is worth the trade off?
PS. they all have the same plug into the PC, of course.