Amazon Basics4-Pack, Rechargeable C Cell NiMH Batteries, 5000maAh, Recharge up to 1000x Times , Pre-Charged

When it said Amazon basics I thought uuh maybe not so good. However I was surprised.Had no issues. Fast charge. Great quality. Use on my radio to save electrice as my programme on Tv I have on is available on the radio and Im too busy cleaning to watch it anyway. This way its like having the Tv on without the power.Yey. They are suprisingly light weight too unlike other bulky heavy batteries.Would definitely buy them again.

Use in my smoke alarms, last well

Good

Very good value

I bought these to put in a lantern for the power cuts we are getting, I have high hopes for them

They do the job as described.

I bought these after reading positive reviews that verified their capacity. First impressions were good as they were quite heavy - always a good indicator of battery capacity. On my digital scales the cells weighed about 160g each, which is about right for genuine 10,000mAh 'D' cells.As they were on special offer, I bought 2 packs of 4 to meet the minimum order value for free delivery. All 8 cells were manufactured in April 2020, and they all measured between 1.275v - 1.285v.I put them on charge to make sure they were fully charged before doing any capacity checks. The charge rate was 1 Amp & took about 2 hours to fully charge them all, so they already had something like 80% of their capacity available. Assuming they were fully charged on the manufacturing date of April 2020 before being sealed in their boxes, that's a self-discharge rate of about 20% in 7 months.Initial capacity checks at a calibrated 1.5 Amp constant current discharge to 1v per cell gave around 9500-9700mAh on my test equipment. This is an excellent result for a first capacity check, as NiMHs need several charge/discharge cycles to reach full rated capacity & there's no doubt that they will reach 10000mAh after bedding-in.With the Black Friday discount & free delivery, the total cost for 8 x genuine 10,000mAh 'D' cells was just £33.68. That's astonishing value for money & I can recommend these batteries very highly. Just make sure you give them enough time to charge up properly, as 10,000mAh capacity takes a long time to fully charge.Cheap chargers almost certainly won't even deliver their rated charging current, and you may end up blaming the batteries when it's your charger that's causing the problem. Even a genuine 1Amp charger is going to take all night to recharge a completely flat cell...

Got these for my baby's vibrating swing, works a treat and better than using disposable ones.