Efest LUC V4 4 Bay LCD Smart Charger with USB Adapter Neck  The LED is the

  The LED is the latest from CREE

Drops into or attaches onto backpack or bag

*Note: While the packaging shows that it is an XP-G Emitter

it looks like a relic fit for a display case

Efest LUC V4 4 Bay LCD Smart Charger with USB Adapter Neck  The LED is theEfest LUC V4 is high quality with 4 charging channel and big LCD charger, it has four built in independent charging channels with reverse polarity protection, short circuit protection, over current protection and Zero voltage activation function, It can automatically monitor battery power and give an alarming notice. LUC V4 charger is compatible with most 3. 7V Li ion or LiMn batteries like 10440, 14500, 14650, 18500, 17670, 18650, 18700, 26500, 26650