Worth trying, but just be mindful. I know SI specifically says it's not a good idea to use 1.8-2 ohms on their mini batteries, which are basically the same as Halo (same voltage). A few tenths of an ohm can be a big difference in terms of what a small battery can handle.
EDIT: If memory serves it's because a 1.8-2 ohm carto pushes the current over 2 amps on a 3.7v battery, and the minis can't handle that. The 2.1-2.3 would only be around 1.6 amp
At 3.7v a 2 ohm atty puts you at 1.85 amps, a 2.3 ohm atty is at 1.61 amps. Freshly charged, at 4.2v, it steps you up to 2.1 amps with a 2 ohm atty.
I know, splitting hairs, but wanted to clarify that.