hi guys, i have maxis zte mf920vs modem

and this is the second time the modem battery is swelling
the first one i had returned it n since there's still warranty so they replace it for free

but this second one also has same problem

can this modem run solely on power, i'm thinking of removing the battery

if not, then what modem should i buy to replace this one that is compatible with maxis?

can you recommend me a huawei model as I dont really know bout all these 4g modems and is it compatible with maxis?
means that if i just put in the sim card it will work right away

my current modem :

the battery is not very hot, just warm, but after 3 months use it become swollen like that
and this is the second unit, the first one same thing happen too

would prefer for a unit that can change battery easily
this one has battery that seems to be wired or glued to the board