really really good 3

If you have to get out how to, in my case Nokia battery B5L uses (at the beginning you think, you could use for 3 hands) ;-) everything is great. Loading slightly slower than the battery in the phone with the original power supply. But still fast (about 2.5 to 3 hours with empty battery)
For the Battery following tip:

Battery set only once at page!
Bring the movable contacts in position, pull the spring-back lower movable plastic "holding part" on a little longer as the battery (with both hands!) Then with one hand the charger firmly embrace from below (thus the suspension "holding part" does not spring back)
and with the other NOW! free hand insert the battery. Then the hand that holds the instrument slowly open up the lower holding part battery clamps ... Puuuuh sounds complicated ... you have the charger but right there ..is easy to understand.