I think phones have fixed batteries for very good reasons — they are trying to make them water and rustproof and as small as possible. They need a lot of power, so only lithium rechargeables are suitable, and if they had a removable cover it would let in water and dust.
Getting the rechargeable battery replaced, after hundreds of recharging cycles, only costs about £30 in most high street mobile repair shops, which is under 10% of the cost of most Android phones when new
Sean Hodges ● 2519d