four sevens quarkquark 16650
maelstrom mxs review
foursevens maelstrom
quark mkiii review
maelstrom flashlight
quark flashlight
foursevens quark aa

Instructions are easy to follow for set up and recharging as well but you may have to play with the unit for a while to get the exact mode you prefer. I like This battery was designed to be used in and recharged with our Maelstrom Regen MMU-X3R only. It will not work with any 26650 lights or the previous Foursevens MMU-X3 (3xXM-L2, 1x26650) review: RUNTIMES, BEAMSHOTS, VIDEO + 4Sevens Maelstrom X10 (XM-L, 26650) Review: RUNTIMES, BEAMSHOTS and more!FOURSEVENS MMU-X3R-AF Maelstrom Regen. by Foursevens Spare batteries for the MMU-x3r. Answer: Will take you some time to read the instructions.