All videos
Double Cooler Power: Beach Charging & Extended Runtime
How to double your portable cooler's runtime by pairing two units, plus charging options via 12V DC and car power.
WattCycle Lost 6% Capacity in 10 Cycles: Budget LFP Cycle Test
Real-world degradation testing of a budget LFP battery system over repeated charge cycles.
This Power Bank Has a Secret
Real-world test of a compact 27000mAh power bank with built-in 110V AC inverter for running household devices off battery.
VATRER 300Ah Battery Review: Teardown and Performance Testing
Detailed teardown and capacity testing of a 12V 300Ah LiFePO4 battery for off-grid solar systems, with analysis of BMS, temperature protection, and cost-per-kilowatt-hour.
Is Your 100Ah Battery Really 100Ah? Here's How to Test It
Seven-minute walkthrough on capacity-testing LiFePO4 batteries using a $20 shunt, covering setup, discharge procedure, and interpreting results.
How To Test a 12V Lithium Battery: Beginner Friendly! Voltage/Internal Resistance/Capacity and More
Learn to measure voltage, internal resistance, and capacity on 12V lithium batteries using affordable test equipment.
How Long Will the OUPES Mega 2 Pro Power Station Run a Refrigerator?
Real-world runtime test of the OUPES Mega 2 Pro powering a refrigerator load.
I Own Bigger Power Stations… But I Always Grab This One
One-year real-world review of the Jackery Explorer 1000 v2: battery degradation, solar charging performance, and practical home-project use cases.
How Long Can the PowerMax Power a Refrigerator?
Real-world test of PowerMax solar battery capacity: how long it can run a standard refrigerator on stored power.