Nokia no longer bothering with holograms on most batteries?
Amazon.com: Synergy Digital Cell Phone Battery, Works with Nokia Lumia 520.2 Cell Phone, (Li-ion, 3.7, 1350mAh) Ultra High Capacity, Compatible with Nokia BL-5J Battery : Cell Phones & Accessories
Qoltec Battery for Nokia BL-5J | 5800 | XM | 5235 | 1320mAh (52013) - Batteries for smartphones - Qoltec
BL-5J : Nokia brand 3.7v 1320mAh Li-ION battery for 5228 5230 N900 etc.
1320-1430mah Bl-5j Battery For Nokia Lumia 520 5230 5228 X6 5800 Xpressmusic N900 C3 5232 Bl5j Bl 5j Smartphone - Mobile Phone Batteries - AliExpress