So, some of you may be wondering, "Why is the 620's battery life so low?", and some of you speculated that Nokia was reusing batteries. Well, to a certain extent, that's true. Enter the BL-xJ family.
If you think they tried to reuse batteries from newer Symbian phones, you're wrong. The 5800 Xpressmusic uses a BL-5J (1320 mAh variety) battery. It was from 2008.
One of the lowest-end phones they used this on was the Nokia X1-01. They used this on various low-end feature phones, and Symbian smartphones. For a long time, the battery capacity was enough.
Take note that the only battery line to be of higher standard than the BL-xJ line was the BP-xL line.
Enter the BL-4J. If you're one of the (un)lucky people to buy a Nokia C6, you're in luck if you're also buying a 620. You now have a perfectly sized back-up battery.
It was actually rather obvious that the BL-4J was designed to be a slightly smaller alternative to the BL-5J, intended for cost-cutting.
Then, Nokia plunged headfirst into Windows Phone.
Let's just say the Nokia engineers expected nicer things to come out of the battery.
The rest of this is history.
If you think they tried to reuse batteries from newer Symbian phones, you're wrong. The 5800 Xpressmusic uses a BL-5J (1320 mAh variety) battery. It was from 2008.
One of the lowest-end phones they used this on was the Nokia X1-01. They used this on various low-end feature phones, and Symbian smartphones. For a long time, the battery capacity was enough.
Take note that the only battery line to be of higher standard than the BL-xJ line was the BP-xL line.
Enter the BL-4J. If you're one of the (un)lucky people to buy a Nokia C6, you're in luck if you're also buying a 620. You now have a perfectly sized back-up battery.
It was actually rather obvious that the BL-4J was designed to be a slightly smaller alternative to the BL-5J, intended for cost-cutting.
Then, Nokia plunged headfirst into Windows Phone.
Let's just say the Nokia engineers expected nicer things to come out of the battery.
The rest of this is history.