For lithium ion, it is impossible to do timed slow charge (the battery would probably overheat and explode), so lithium ion batteries do not have the problem of some chargers being very poor. All officially sold Li-Ion chargers work just fine. My recommendation: buy only 2-4 hours chargers from name brand battery makers like Sanyo.
Allowing It to Get Too Hot or Too Cold. Nothing kills batteries like exposing them to extreme temperatures. It's common knowledge that extreme heat is bad for lithium-ion cells, but the same is true of extreme cold. Leaving your laptop in a car that's exposed to sub-zero temperatures (below 0c or 32f) may result in irreversible damage to the cell.
Lithium-ion batteries will face the risk of excessive self-discharge during long-term storage, especially at lower open-circuit voltages. Due to excessive self-discharge, the voltage of the lithium-ion battery may be too low, causing negative and negative copper foils dissolution and other risks, because the dissolved copper element will be precipitated on the surface of the negative electrode
Figure 1: Sleep mode of a lithium-ion battery. Some over-discharged batteries can be “boosted” to life again. Discard the pack if the voltage does not rise to a normal level within a minute while on boost. Do not boost lithium-based batteries back to life that have dwelled below 1.5V/cell for a week or longer.
Use the load to drain the battery completely and see how long it takes, and measure and record output voltage under load as it drains at regular increments. Now you know, when the battery is new what the remaining capacity of the battery is at each voltage at your intended load.
When a lithium-ion battery is not in use, it will lose some of its charge. This is known as self-discharge and it’s a natural process that occurs with all batteries. Study shows that batteries happens to discharge even faster when the battery isn’t being used properly or stored in suboptimal conditions.
6 days ago · Connect the LiPo battery’s most plug to the NiMH charger. Charge the battery using the smallest current feasible, such as 0.1A. Note the voltage number that displays on the charger’s screen while the battery is charging; once the amount exceeds 3V, disconnect the battery immediately.
Let your phone lithium-ion battery charge while you're sitting still—but don't overdo it. Tamarcus Brown/Unsplash SHARE. This story has been updated. It was originally published on 8/23/17.
5. votes. Li-Ion degrades with use, so you should prefer shallow discharges. I.e., always charge it as soon as possible. This is in contrast to Ni-Cd and Ni-Mh accumulators, which do like to be fully discharged from time to time to keep their full performance. So normally you should plug in your laptop whenever possible.
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lithium ion battery drain completely
