I keep forgetting about that really useful site!If you want the 'full monty' on batteries, check out the (I kid you not!)
That's odd - unless the device runs on, say, 3+ batteries then rechargeables should work as well if not better than alkalines. It's all to do with the discharge curve of the two types of batteries. Alkalines start at or above their rated voltage but drop linearly until discharged. For example a 1.5V battery could actually deliver 1.7V to start with but will gradually and predicatably reduce the voltage delivered until discharged (which is probably around 1V - can't remember off hand). In contrast NiMH rechargeables will start off at around 1.5V drop quickly to, say, about 1.3V but then remain at that level for a relatively long time thereafter until they deplete. In the meantime it will deliver a steady 1.3V (or whatever) while an alkaline will steadinly deliver less and less voltage. This means that most devices that run on 1 or 2 or maybe 3 batteries should be able to run on rechargeables. The problem with increasing numbers of batteries is that they are generally in series so, for example, 4 x 1.5V AAAs = 6V but rechargeable voltage will reduce this on a pro rata basis per battery (e.g. 4 x 1.3V = 5.2V and the difference may be too great - with fewer batteries it may not matter). Ultimately it's probably easiest (especially if you can borrow rather than buy the gear) to try rechargeables out first and see if they work. If they do then you can purchase your own stuff.(not rechargeables - I asked my wife why not, becuase I have stacks of rechargeables, thinks it's becuase they can drain down very quickly and deplete over time, not good if you're asleep and thus getting no insulin - I think the pumps are also sensitive to the fluctuating voltages from rechargeables).
Sounds promising so. At least try out the rechargeables and compare performance to alkalines. Chances are the former will work better/longer.OK, I've checked the manual - it says on Page 3 'Normal Alkaline AA batteries (battery designation AA-LR6) and rechargeable batteries' (I'll have a chat with Mrs Quinno about using my rechargeables!), so that clears that up. BTW, it only uses one battery.
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