I’m having a med Blur LTC (obv) and have discovered that the battery pack for my Betty 5 doesn’t fit between the top and down tube.

What light should I replace my Betty with?

put battery on seatpost and get an extension cable?

Ive got a lumicycle HID where the battery fits in a bottle cage, would that do the job?

or round the stem? Or use it as a helmet light instead (again with extension)

or one of these on top of the tube;

http://www.winstanleysbikes.co.uk/product/32478/Lezyne_Energy_Caddy_TopTube_Bag

Mount the light on your helmet and put the battery in your pack. Miles better if you ride anything technical or containing corners……..

Depending on the size of the battery, then as Z1ppy points out, try mounting the battery under the stem on the opposite side of the stem to where you mount the light unit itself ?.

Think I might go with the extension cable seatpost idea cos the battery packs too big for the stem, although I haven’t got a clue what to do if I get a dropper post.

Already got a L&M on my lid, hmmm, wonder if the battery for that would fit?