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Jennifer Westenbroek
Comentado en los Estados Unidos el 16 de febrero de 2024
Got these batteries on january 2 and I installed them right away into my pin clock. Today as of february 16 they are still running. They have not died yet. So far I love them.
Maribel
Comentado en México el 17 de diciembre de 2024
Se recargan muy rápido
Larry Jenkins
Comentado en los Estados Unidos el 1 de diciembre de 2024
They work great unless you want to listen to AM. The individual BM in rechargeable units cause static
Joshua Hall
Comentado en los Estados Unidos el 8 de noviembre de 2024
Not my first Bump battery, they have all been fantastic. Their AA and AAA batteries have my loyalty; I run LED flashlights for hours on those things (AA's) and they perform almost too well! I also run a few industrial controllers both at work and home on the AAA's and same goes. 10/10 would recommend.These D's on the other hand... I put them in a fluid transfer pump because I coach motorcycle racing; when I get my fuel I tote it back to my paddock and I don't feel like lifting 40+ lbs after that, and especially before exerting myself on the track.I used them today and the pump sounded different and underpowered. Replaced them with some cheap 5-month old gas station alkaline D's and it worked fine. An hour later I needed more fuel and tried these again after a fresh charge, they were 100%. A small whirr then uneven power surging, then nothing.My voltmeter shows about a tenth of a volt on both now, AND they will not take a charge anymore. Honestly this is after only 2 minutes of usage on a simple on/off motor. It's almost like I instantly discharged them!Suggestions? Returns? Refund? Replacement? Like I stated, this brand is great so I wonder if you could cut me a deal to buy new ones to attempt again? Let me know please
Joey 1
Comentado en los Estados Unidos el 7 de agosto de 2023
I I like this product because there’s no guesswork with the plug it into if it’s charged or not charged all the guesswork is gone you plug it into a USB with the cable that’s provided it and it will let you know when it’s ready by turning green, can you unplug it and it’s ready to go! I like not having to have a separate charger. Once you plug into the battery, I plug it into a 5 V two amp charge port because the battery is lithium ion that makes it durable and long lasting with the low risk of fire. This will handle a 503 app charge port with some mini of these USB ports come in now you’ll find very few two amp outlets, but these batteries they don’t seem to care don’t get hot just plug me into whatever USB that you have and a USB-C goes into the battery. I charge for the time and it handles 90% of my battery needs.li-ion. Is what we use in giant scale high powered remote control airplanes. These are not toy planes. These are 40% planes 10 foot wingspan 10 feet long. It has a very specific power needs and I will use.Li-ion for the power and low discharge rate. You won’t be disappointed I have used my flashlights my favorite is I have an iHome stereo because back 25 years I believe I’ve had it for a long time and I’ve taken very good care of it. It’s a fairly large speaker system please sounds incredible. It works with a plug being plugged in the wall or you can unplug it and run it on batteries lower. You have it the quicker the batteries will drain will still last a good 3 to 6 hours if you put it at half volume it’s still really loud, and it will last almost all day end of the day I am plugging it in to an outlet trash, set up outside and just sit by the fire pit and enjoy!
Doc Holiday
Comentado en los Estados Unidos el 14 de agosto de 2023
Comparing the weight of these to others, these are much heavier. That means they are real D batteries. Not double AA batteries packaged in a D case. Buy these. You won't be wasting your money.
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