You could use your cell-phone ?
How and in what way?
Do you have an USB stick? Electrum has a portable version too...
No I don't have.
Well, you can use a mobile wallet (like Coinomi) and redeem your BCH.
Or you can use a portable version of electrum, first move all your BTC to this new wallet, then delete the old (empty) one you have on your computer and install a Bitcoin Cash wallet on your computer. Then import your private keys in your BCH wallet to claim these coins.