Nice find...BL-5J clones are as common as mackerel and cheap as chips! One-quarter to one-third the price of Garmin clones and a fraction of OEM. Also should suit all 2xx, 4xx, 7xx etc. Big implications for 1xxx etc too, and anything else using 3.7v Li-ion/Li-pol. So many sizes available in the Nokia range, something will fit surely with a bit of soldering. Rep+.