The 2000 mah batteries & chargers was specced against the way this space is actually used, not against a brochure. At a glance Type: AA Battery Capacity: 2000 mAh Chemistry: Alkaline Pack: 2 Price: ৳12.89 Why it holds up Set up as a aa battery-class unit, it does the job without asking you to improvise. In practice First use: no break-in ritual required beyond a quick wipe and a glance at the label. Storage: stows neatly, taking no more room than a loaf tin when out of service. Care: a rinse and dry cycle in the usual rhythm keeps it looking fresh. Not the loudest option available — quietly the most sensible one.