I've had my HP2 for awhile (June 2017) and recently started getting a battery charge error....I assumed the AA rechargeable batteries were due for replacement so I replaced them with "Energizer Rechargeable AA Batteries, NiMH, 2000 mAh, Pre-Charged" from Amazon...I made sure the scanner setting was adjusted to 2000 mAh but continue to see the same error and flashing red charging light.....any ideas?
Make sure that the charging source you are using (PC USB port or a plug in USB charger) is capable of 1.0 amps or more. It also needs to be a 'smart' charger that signifies to the scanner it can supply the needed voltage and current. Older PC's USB ports were often only 500mAh, which is only half of what is needed to both charge and scan. You can use that to charge, but only if the HP-2 is turned off.
If you can confirm that a charger or source is 1 amp or higher, and is of the correct type, then the other possibilities would be either a bad 'new' battery, or perhaps corrosion in the battery slots in the scanner (or maybe a weak spring, not maintaining good contact).
Setting the scanner at 2000mAh only affects the charge time the scanner would use. The max time is 14 hours. I use a high output external charger for my HP-2, but only occasionally charge the batteries, as it stays connected to the charger, monitoring 24/7. The only need for charging the batteries is if I lost power; having charged batteries prevents an unintended shutdown, which can corrupt the memory card.
