"Suitable" is important: If you have a newer Psp (3000 series for example, or from motherboard TA88v3), then it does not go well with this battery.
And one will not work: A downgrade without a clever guide.
Without battery is nothing but a good manual is almost as important.
Otherwise: the battery, please do not consider as an alternative to ordinary Sony battery.
At the no way around. Therefore, a star less.