I purchased this after replacing the battery in my MX-24 with a 5000 mAH 1S2P pack and it appeared not to get fully charged to 4.2 volts as indicated by the display on the MX-24 using the original charger. The new charger made no difference. After measuring the charger voltage with no load, it does read 4.2 vdc, but when connected and charging, in never gets above 4.08 vdc and the input is 121 vac. The charging current after 12 hrs is only 25 ma. My original battery was a 4000 mAH 1S2P and it would make it to 4.2 vdc. When using a HiTec programmable charger, set to match the battery parameters, the 5000 mAH will make it to 4.2 vdc! I know of others that have the MX-24 Pro that came with the 5000 mAH pack and have never been able to reach 4.2 v indicated!
Reviewed by: William V. Kirkpatrick, Jr. from PITTSBURGH on 9/1/2019