This summary of the video was created by an AI. It might contain some inaccuracies.
00:00:00 – 00:15:39
The video focuses on testing the discharge performance of various AA batteries, including the Harbor Freight Thunderbolt Edge, Duracell, Sunbeam from a dollar store, and Harbor Freight rechargeable batteries. Using a Powerex MHC 9000 charger, the presenter sets a discharge rate of 300 milliamps to gauge battery capacity, typically ranging from 1,500 to 2,200 milliamp hours. Initial voltage measurements place most batteries at around 1.6 volts, with detailed monitoring at intervals. Key findings include the Sunbeam battery underperforming significantly, the Duracell and Thunderbolt Edge exhibiting similar and competitive performance, and the rechargeable battery demonstrating the highest capacity. A notable conclusion is the relatively superior performance of the Thunderbolt Edge over the Duracell in voltage retention. The video also highlights potential leakage issues with Thunderbolt heavy-duty batteries, based on the presenter’s personal experience. Overall, the test ranks the batteries from best to worst: rechargeable, Thunderbolt Edge, Duracell, and dollar store battery.
00:00:00
In this part of the video, the presenter plans to conduct a discharge test on several AA batteries, including a relatively new Harbor Freight Thunderbolt Edge battery, a Duracell battery with an expiration date of March 2027, and a Sunbeam battery from a dollar store. The discharge test will use a Powerex MHC 9000 charger, which has a discharge feature that allows setting the discharge amperage. The presenter intends to set the discharge rate to 300 milliamps to gauge the battery’s capacity accurately. The batteries’ capacities, typically ranging from 1,500 to 2,000 milliamp hours, will be compared to understand their performance. Additionally, the presenter mentions a recent purchase of Harbor Freight rechargeable batteries, claiming a capacity of 2,200 milliamp hours, and plans to compare these as well despite the difference between rechargeable and alkaline types. The segment concludes with the intention to do a voltage check on each battery before starting the tests.
00:03:00
In this part of the video, the presenter tests various batteries from different brands including Harbor Freight, Thunderbolt rechargeable, Duracell, and a dollar store brand. They measure the initial voltage of each battery, finding most of them around 1.6 volts when fully charged. The presenter then performs a discharge test on each battery by setting them up in a charger with a discharge rate of 300 milliamps. Steps are repeated for each battery type to ensure consistency in the testing process.
00:06:00
In this part of the video, the presenter discusses using a Thunderbolt Magnum battery from Harbor Freight and explains the process of monitoring its discharge over time. The battery has a capacity of 2200 milliamps and is being discharged at a rate of 300 milliamps. The presenter checks the progress in intervals, initially showing the status of each slot every hour. For example, after one minute, slot 1 has discharged 4 milliamps, while other slots have varying discharge values around 6 milliamps and voltage around 1.3 volts. The video resumes after an hour, revealing each battery’s discharge progress, noting that on average, the batteries have drained approximately 346 milliamp hours, suggesting that the test’s completion might be expected around the four to five-hour mark. Further updates are promised as the discharge rates approach higher levels.
00:09:00
In this part of the video, the presenter updates on the status of different battery slots after over two hours of testing. Each slot contains a battery type that is evaluated for its voltage and milliamps (mAh) used. The hardware freight rechargeable battery has been running for nearly 200 minutes, showing 114 volts. The Sunbeam dollar store battery is at 902 mAh with a 0.98 voltage, indicating it is nearly depleted. The Duracell battery, at 907 mAh and 106 volts, is performing well, while the Thunderbolt Edge, at 905 mAh and 104 volts, is closely matching Duracell’s performance.
Returning after another hour, the presenter notes the hardware freight rechargeable is at 112 volts and the Sunbeam at 0.9 volts, with both having used about 1400 mAh. The Duracell, also around 1440 mAh, is at 0.97 volts, slightly underperforming compared to the Thunderbolt Edge at 0.98 volts with a similar mAh usage. Surprisingly, the dollar store Sunbeam is still functional, though its voltage is low at 0.90. Overall, as of now, the Thunderbolt Edge is slightly outperforming the Duracell in terms of voltage.
00:12:00
In this segment of the video, the speaker reviews the performance of several batteries. The first battery, tested at 1437 milliamps, is completely discharged and considered to have the lowest capacity. The Duracell and Thunderbolt Edge batteries are still running, with the rechargeable battery expected to last the longest due to its 2200 milliamp rating. Upon returning, the speaker finds that Duracell finished at 1769 milliamps and lasted 386 minutes, while Thunderbolt Edge finished at 1785 milliamps and lasted 390 minutes, slightly outperforming Duracell. Finally, the rechargeable battery completed with nearly 2000 milliamps over 428 minutes of runtime, despite being stored for a month. The best capacity to worst ranked in order is: rechargeable, Thunderbolt Edge, Duracell, and dollar store battery.
00:15:00
In this part of the video, the speaker discusses the reliability of Thunderbolt batteries from Harbor Freight. They note that some of the Thunderbolt batteries, particularly the heavy-duty ones, have a tendency to leak over time. The speaker mentions their personal experience with a recent leakage incident. They express that they haven’t tested the alkaline version of these batteries but suggest that other reviews might be available comparing the milliamp-hour drain and performance of the batteries.