I tested them with the AccuPower LCD Fast Charger IQ338XL and here are the results. Having used rechargeable batteries for years, I can say that I have never seen a discharge test that matches the actual value stated on the battery. As far as I know, there are many crucial factors that go into this rating. I think these batteries performed very well at different discharge levels. I tested 4 out of 12. As for durability only time will tell but I suspect these will last a long time. I would buy these batteries again, I think the price-performance ratio is right. Right out of the box, they were almost fully charged, indicating a pretty good low discharge rate. First test, approx. 5.5 hours discharging and charging for all with 500 mAh internal resistance: (battery 1) 26 mΩ, (battery 2) 28 mΩ, (battery 3) 20 mΩ, (battery 4) 21 mΩ (battery 1) Discharge 1701mAh: Charge 2402mAh, (Battery 2) Discharge 2194mAh: Charge 2397mAh, (Battery 3) Discharge 2171mAh 3: Charge 2444mAh Battery4) Discharge 2228mAh: Charge 2448mAhSecond Test 500mAh Discharge/charge rate internal resistance: mR (Battery 1) 21, (Battery 2 ) 52, (battery 3) 43, (battery 4) 25 (battery 1) discharging/charging 5 h 27 min. 5h:23min 2271mAh:2348mAh, (battery 3) discharging/charging 5h:36min 2258mAh:2448mAh, (battery 4) discharging /Charge 5h:26min 2304mAh:2374mAh )74, (Battery 4)34Discharge/Charge (Battery 24mAh1):2342mAh, (Battery 2 ) Discharge/Charge 2h: 36min 2260mAh: 2287mAh, (Battery 3) Discharge/Charge 2h: 35min 2246mAh: 2279mAh , (battery 4) discharging/charging 2h: 44min )20,(battery 2)93,(battery 3)29,(battery 4 )28 (battery 1) discharging/charging 1 hour: 43 min. 2257 mAh: 2269 mAh, (battery 2) Discharge/ Charge 1 hr: 43 min 2221 mAh: 2262 mAh, (Battery 3) Discharge/ Charge 1 hr: 45 min 2206 mAh: 2314 mAh, (Battery 4) E Discharging / charging 1 hour: 43 min 2261 mAh, 2273 mAh
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