Does this cell have undervoltage cutoff circuit? Lithium batteries can become unusable if over-discharged, unlike NiMH.
1178268
I don't believe you will have that problem. Recent rechargeable don't over charge like the ones from even 5 years ago
1178269
according to product datasheet they have a 6 volt cut off on discharge. http://www.all-battery.com/datasheet/30593_datasheet.pdf if you copy and past this you can get a copy. we have ben using these for over 2 years in portable motion detectors and also tens units we have had only great results with these lasting longer that any other batteries we have tried rechargeable or not.
1178270
These are Li-ion batteries, so yes, you can over discharge them to the point where they require a decent charger to resurrect them, and will lose capacity. Li-ions do suffer from accumulated corrosion, but it's usually in the charge cycle, not discharge that increases cell resistance. Most batteries have an under-voltage protection circuit that protects them from going completely dead, though. Check the Tenergy website for this model to see if they say anything about it. I'm not completely happy with my NiMH LSD versions, and my research into those batteries from Tenergy seemed to indicate that Tenergy was not a very reliable manufacturer. YMMV. These are Li-ion batteries, so yes, you can over discharge them to the point where they require a decent charger to resurrect them, and will lose capacity. Li-ions do suffer from accumulated corrosion, but it's usually in the charge cycle, not discharge that increases cell resistance. Most batteries have an under-voltage protection circuit that protects them from going completely dead, though. Check the Tenergy website for this model to see if they say anything about it. I'm not completely happy with my NiMH LSD versions, and my research into those batteries from Tenergy seemed to indicate... » Read More These are Li-ion batteries, so yes, you can over discharge them to the point where they require a decent charger to resurrect them, and will lose capacity. Li-ions do suffer from accumulated corrosion, but it's usually in the charge cycle, not discharge that increases cell resistance. Most batteries have an under-voltage protection circuit that protects them from going completely dead, though. Check the Tenergy website for this model to see if they say anything about it. I'm not completely happy with my NiMH LSD versions, and my research into those batteries from Tenergy seemed to indicate that Tenergy was not a very reliable manufacturer. YMMV. « Show Less
1178271
It's a cell not a circuit. I use only Li-ion and Li-Polymer 9 volts on about 20 projects that continue to run to discharge with no problems; a smart charger exclusively for these batteries has the circuit that has yet to fail to charge any of these 'over-discharged' batteries. Most electronics stop working at a certain voltage long before the battery is totally discharged. Still, even with current-hungry circuits, none of the 40+ various lithium 9 volts I use for the last year and a half have failed with constant charge/discharge.Can't say the same for NiMH.
1303196
Yes. But you have to carefully compare voltage of fully charged cell to depleted one. Best after allowing battery to sit a couple hours.
230271
I have also noticed that one of mine also when fully charged and used little drains very quickly. This is not normal for a good lithium.I have only used one of the two but makes me worry.
719382
Do not use unprotected cells with this unit. Please reconsider using unprotected cells for anything other than making new battery packs, with a proper protection circuit. Loose, charged, unprotected Li-Ion cells are ticking time bombs. This charger in particular relies on the cell's protection circuit to kick off when its reached maximum voltage; this isn't ideal, but for the price its what you should expect.
759086
With NiMH batteries, you sometimes need to entirely drain them to get them to take a full useful charge.The discharge button does that (and then once done, charges them all the way up).
958522
I have the Canon S1 and have been using rechargeable NiMH cells in it without problems. However, I have to point out that not all NiMH cells are suitable for digital cameras. I have some several-year-old NiMH cells that have relatively high internal resistance. When the camera is operating (especially with flash on), it may drain more than 1A of peak current. Due to the higher internal resistance, supply voltage can dip below "low battery" mark even when those batteries are fully charged. It is a good idea to clean the battery terminals and battery compartment contacts (with a pencil eraser, for example), to make sure they make good electrical connections. There are also some cells (such as the Energizer 2500mAh) with shockingly high self-discharge rate. If you charge up those cells and leave them in your camera for a few days, they may become completely exhausted before you can take any pictures. Nowadays I only use low self-discharge cells (such as Sanyo eneloop, Rayovac Hybrid, Kodak Pre-Charged) in my photo equipment.
2207806
I have only used non-rechargeable lithium batteries. I've found that one charge drains those batteries completely.
1970685
Apologies for such a late/delayed response. ALL of the listed rechargeable batteries AA/AAA/C/D/9V are handled, and BOTH types, the Nickel Metal Hydride (NiMH) and Nickel-Cadmium (NiCD). I have been using it for quite awhile now, and this unit works wonderfully. But, I will HIGHLY RECOMMEND to anyone, spend a little bit more money on the Nickel Metal Hydride (NiMH) rechargeables! They last about two to three times as long after recharge than the NiCD type. Just a suggestion :) :) :)
640725
AmazonBasics NiMH batteries should be stored in charged state. That is the whole point of using low-self-discharge batteries: charge them in advance, so they are ready whenever you need them.Ordinary NiMH cells should also be stored in charged state, but in this case the higher self-discharge rate will deplete them in a few months. If you store NiMH cells in depleted state for a few months, their capacities will drop the next time you charge them. That's why you need to run REFRESH (Discharge/Charge) operation on them multiple times, in order to recover the lost capacity.
743092
I recharge mine every night. Lithium-ion batteries do not need a full discharge and recharge to maintain its battery life. Whether you discharge it 25%, 50% or 75% before charging it doesn't effect the life of the battery. I've had this battery for a year of constant use and it still works awesome.Overcharging or discharging too low is bad for the battery but most phones stop charging or shutoff before this is an issue.
905740
I do not know the answer to your question. All I can say is that I have not had any issues with overcharging or over discharging of these batteries. I have been using this type of batteries (5000mAH) for the last two years.
715642
Regular batteries work fine.. The lithium batteries will cost more than the megaphone you are putting them in. It may be worth it if you use the megaphone a lot, but is isn't for me. I put in 8 regular d-cells and it works great. It's a great megaphone, I've had no problems and it's well worth the price. I leave it by my bedside when not in use. If you pick it up and pull the trigger the siren goes off to scare away prowlers. Never had to, probably never will. Nice to know it does that.
351242
No. This is for charging Lithium Ion batteries which are 3.75 Volts. your niMH batteries are 1.25 Volts.
1048554
It specifies Lithium rechargeable batteries. I am having trouble finding rechargeable batteries that are lithium...most are Ni-MH. Can these still be used? (Sorry for the ignorance...I have never used rechargeable batteries!)
919576
Kind of. The voltage regulator is actually part if the battery. It shuts off at full charge and also shuts off to prevent over discharge.
666649
How much current an device draws is dependent on the device but the upper limit depends on the source. If the source can provide up to, say, 5 amps, then something connected to it can draw as much current as it will, up to 5 amps. Phone designers would be crazy to design devices that could create a thermal runaway., especially devices with lithium batteries which can explode if overcharged. For this reason lithium batteries in consumer good have the charging control circuit built into each battery -- this ensures against an overcharge. Re battery life, lithiums are complicated but the short answer is that it's really only the charging when the battery is nearly fully charged that matters. If you charge high current when topping off, it can reduce battery life. But the charging control circuit is supposed to limit the current and approach zero when the battery is full. The source controls the voltage seen by the device (phone or whatever). The USB standard is 5 volts DC-- So that's the voltage presented by any device built to USB standards. Your car, nominally 12 Volts, is really about 13.5 volts or a bit more depending on the design of your car battery and alternator. This can cause a USB device to output slightly above 5 Volts if it was designed to have exactly 12 volts as input. When you start the car a surge can go through that is higher. It's a good idea not to have phones or such plugged when you start up the car.
307200
It is blank under the Ni-MH. No problems with the new batteries for two months :)