Reply To: Pump battery Home › Forums › Living with type one › Pump battery › Reply To: Pump battery 17 February, 2016 at 3:10 pm #15827 TimKeymaster @Lizz – The small amounts of insulin thing and red line on the insulin indicator does sound annoying. Could you fill up the vial and re-use it with a new set? Probably not as you’d be using some quite old, unrefrigerated insulin after a week or so.