Question FX505DU Battery Upgrade

[Keithanater179]

Hey Everyone,

I'm kinda curious if any of you all would think this would work, I presently have an FX505DU (Link)it's a fantastic laptop for many reasons except its battery life is not great. I have recently discovered that ASUS' new line of tough books FX506 (Link) has the exact same connector but is double the size, and it is even possible to switch the newer laptops for a smaller battery if you wish to have an additional HDD.

If anyone has tried this or thinks it would work please let me know! The dimensions look like it would fit easily as well!

 

[Barty1884]

I would assume, since they've gone with a 48WHr battery in the FX505DU vs 90WHr in the FX506, it's a space limitation.

Smaller makes sense as doable, but larger, you're likely not going to have the space.

 

[Keithanater179]

I agree that that is the largest possible risk, but the laptop case is pretty well identical, even the internal dimensions, the motherboard is also smaller on the older (my laptop) the larger battery is longer but not wider

 

[Barty1884]

Without seeing the internals, it's impossible to say for sure - but given they look like they use different locations for mounting AND appear to have the battery connector on the motherboard in completely different locations (relative to the battery), I can't imagine this is going to be doable.

 

[Keithanater179]

I might be completely nuts, but I kinda wanna try it ahaha, I've measured it out and it would line up to use three of the regular 4 screw holes, the larger battery is also thinner, so that would not be a concern, and the battery (based on dimensions) will also fit inside the case. Maybe I'll just order the battery and try it out as it seems no one has tried it yet, its a fairly popular mod on the newer notebooks though. It also looks like it's been successful doing a larger battery upgrade in the newer models which have smaller chassis
View: https://www.reddit.com/r/ASUS/comments/gdaba4/asus_tuf_a15_battery_replacement_48whr_to_90whr/

Here's also the batteries compared better side by side:
Battery Diagram