Review on 🔋 POWEROWL Rechargeable D Batteries 10000mAh: Long-lasting, Low Self Discharge, NiMH, Pre-Charged (4 Pack) by Joshua Gulledge

Has >80% rated capacity, which is good for this market. I analyzed these with formative charge (aka break-in). Out of 12, 10 were >8000 mAh, one was around 7500 mAh and one was clearly defective at around 2500 mAh. Customer service was good at giving refunds for substandard ones. None of the rechargeable D-cells on the market actually seem to deliver 10,000mAh. They seem to be comparable to the Bonai brand, also quite stable >8000 mAh, but these Powerowls can be cheaper. The EBL brand is even cheaper, but its capacity is fairly consistently under 8000mAh. I haven't measured the memory's self-discharge rate yet.