Is there any harm to light gaming on battery?

I was wondering if there is any harm in some moderate gaming on battery. It's just too inconvenient for to lug my G73JH's power brick around college all the tim e so I've taken to some light gaming on battery during my breaks. I've been playing Halo PC (the original one) and I can play around an hour on a full charge before my battery is critically low, at which point I stop. Mind you this is with PowerPlay enabled which throttles my clocks at 300/1000 during gameplay but because Halo is not taxing at all I don't notice any difference and it increases my battery life. One downside to this, I've noticed, is that I've been getting black squares and artifacts on the ground during the game which are caused by PowerPlay's clock speed throttling.

I've head warnings about gaming on battery reducing the battery's lifespan because of rapid discharge, so is there any potential harm in doing what I'm doing? I mean Halo is not a very taxing game so it doesn't completely discharge a full battery in 20 minutes and PowerPlay limits the power usage as well.

 

I don't see why this would be too harmful to the battery, it's not like you're draining it while playing Crysis.

 

Who cares drain it it will be the person you sell it too's problem anyway!

 

OK got it. So frequently discharging a full battery in 20 minutes while running Crysism may reduce its lifespan appreciably but running a much less power-hungry game with PowerPlay on should be fine.

BTW, in the name of science, I just tried the whole battery gaming in Crysis thing. I was running my normal settings (everything High @ 900P), which is usually quite playable most of the time. PowerPlay was off so clocks were stock 700/1000 but there were some frame rate drops that didn't happen when plugged in or on AC power. Probably some hardware or software settings that are still throttling performance a tiny bit. Oh yeah and my computer when into hibernate after 25 minutes.

 

Haha if I do keep running Crysis on battery like that I don't think it'll live that long!

 

Batteries that come with desktop replacements never last as long as their netbook/notebook brothers and sisters and the cells degrade a lot faster some quicker than others and discharging at double the batteries capacity will cause wear gradually.

Still its there to be used and leaving it in unused while charging will also cause wear so its a loose loose situation. My clevo came with 5% wear as standard even with several calibrations! Bloody cheapskates but I dont care at full pelt the bugger only lasts 30 minutes anyway

 

On the subject of G73JH batteries, do larger 10-cell or 12-cell batteries which fit it exist? Similar to the large aftermarket ones that people sometimes buy for their HP laptops and the like which has a big bulge at the bottom that causes the laptop to sit at an incline when they are installed.