My laptop batty indicates 0% so i always plug it to power supply and use it. Something strange happened when power cord was removed my laptop was still working for more than 40 min. But it will not turn on with out the power cord connected. Why is ti so?
Instead, connect the battery to a jump starter or battery charger either before or right after doing a jump-start.
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SIR, My laptop ASUS X540S, three month ago his battery had a cell from three damaged and I continued to use it like that. The battery has 3 cells, the middle one had 0V, the two others had 3.88V and I replaced the damaged with a new one. Unfortunately now the battery seems disconnected from the charger. I see 13% available (plugged in, charging), but battery do not charge. When disconnected, the 3-d terminal shows 3,2V, the 8 others 0V. When charger is connected : terminals 1 and 2 have 0,06V, 3 have 3,2V, 4 0V, 5 and 6 have 3,25V, terminals 7,8 and 9 have 0V. When system started, nothing change. My question, which terminal is the switch one ? If I connect to ground through 100 ohms any terminal, do I risk to damage the computer ? What should I do ?
If a battery is in good shape, the connections will be clean and tight. There will not be any corrosion on the battery. That said, batteries don’t always warn drivers before they fail. At Attrell Toyota, we recommend replacing batteries that are more than three years old.
Set the Multimeter to read volts. For testing an 18 volt battery choose the 20 volts setting. This will give you the most accurate reading. (If you don't have a multimeter skip to Step 9 and hope for the best)
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Hi, I found this site very helpful, however I still I am not sure hoe to remove the old cells without disconnecting the chip from power. Anyone help me to find wires that feed the chip. thanks, looking forward for help on this issue
Cut the end off of your AC adapter. That's right. Just cut it off. It's for a 10 year old cell phone, you're never going to use it again anyway. It's frankly kind of weird that you saved it to begin with.
Lead- and nickel-based batteries are more or less uniform and one can say that lead acid is lead acid and NiMH is NiMH. This cannot be uttered about the lithium-ion family as it has diverged into many unique systems and some with different voltages. While most Li-ion has a nominal cell voltage of 3.60V and charges to 4.20V, some specialty Li-ion charge to 4.10V and newer Energy Cells top at 4.35V/cell and higher. Li-phosphate presents a further exception with a nominal cell voltage of 3.20V and a charge limit of 3.65V/cell. Also unique is Li-titanate with a nominal cell voltage of 2.40V and charge limit of 2.85V(See BU-205: Types of Lithium-ion) These cells are definitely not interchangeable.
How to choose properly: check for its accuracy before purchase. A good multimeter has error bar of 0.025-3%.
Do not recharge household batteries except those that specifically say “rechargeable.” And recharge them only in battery recharging units. See Battery Recharger.
We put together a guide on how to get more life out of batteries, and easy-to-use tips to keep your battery healthy.
After even a few months you may notice your iPhone or Android phone is not holding a charge like it previously had. Are you constantly looking for an outlet or power cord? let us help you fix the issue by replacing your cell phone battery at our Waco South Valley Mills Drive Battery Joe location! Cell phone battery replacements usually only take 15 to 30 minutes!
Thanks for keeping it simple! FYI - from other sources, if the battery falls below 9 volts the charger will reject it as bad. -Randy
If you’re like the many, however, who are not covered under Apple’s protection plan, it is still worthwhile to explore other options for getting your iPhone battery replaced. Is your device freezing up when you try to send text messages?