Step 4b: Replace any bad cell groups with the closest possible match to the other cells. It’s important to consider the fact that the cells in the battery that you are replacing are more than likely a non-insignificant percentage into their lifespan. So, use great care when choosing what cells you use to repair the battery. The goal is for each cell group to have the same capacity and internal resistance.
my laptop battery output =11 v but its dead now , can i replace the battery with (non specific) AC adapter that's give me the equivalent output =11 or 15 v .. could this hurt my motherboard or anything ??
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Check the vehicle manual to be sure your car’s voltage matches the charger’s DC output voltage.
However, if you have refill caps on the top of your battery and if you are sure that you do not have an AGM or GEL battery, you can follow these steps to recondition your car battery:
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The new prices don’t appear excessive and Apple, like other tech companies, is facing increased price pressure as inflation continues to run at 40-year highs. Thrown into the mix are Apple’s ongoing supply chain problems in China.
The hot ash method should be used as a ‘last resort’ – you only use this when all else fails. First, you need to light a fire and let it burn down to hot ashes. Then remove the filler/vent caps from the top of the battery, take the battery off the car, and place it on the hot ash. Be careful and make you it doesn’t catch fire. The hot ashes should warm the battery up. Reinstall the battery carefully and try to restart your ignition.
Hi sir Dell ibattery nspiron 5050 ( cycle count=0 , battery charge=0 , battery health =100% ) , can't charger, but when i charge it manually laptop pwoer on and normally work. Why laptop can not charge it?
Step 1: To fix a broken ebike battery, you will need to take the battery pack out of its hard protective casing so that you can get to the cell groups.
i use hp-15 notebook laptop and when i power on it it says that problem with battery(internal) 601 problem and needs to be replaced. so what shall i do? is it a problem of Cemos battery or external battery? which battery did i replaced? Though Battery is fully charged… System shut downs after 15-20 minutes… But If plugged in works properly.. What would be the problem?
3) The batteries don't like to sit at 100%. Once it's charged, take it off the charger. Bonus points if you put it right into a tool and turn it on for like 5 seconds. Now it's at like 95% charge, it's much happier, battery is now ready for storage and doesn't need to be touched for a year.
For example, if you check the pace at which cart is accelerating or decelerating, it will give you an idea if it’s time in case any of the functions become abnormal. In addition, you may notice any erratic behavior while charging which gives away its state. Note the time taken for complete recharge and frequency. Is it too much?
I had same question like Stuart - have a HP Probook laptop. One of the pins of the battery connection has broken off. Can the connection be replaced or do I have to replace the whole mother board?
Apparently lithium ion batteries should be "pulse" charged. Which means you hold your wires down for 15 seconds or so, then release them. Then hold them down again. Over and over.
When repairing a Li-ion pack, make certain that each cell is properly reconnected to a protection circuit(See BU-304: Why are Protection Circuits Needed? and BU-304a: Safety Concerns with Li-ion) With the exception of some single-cell and power-tool packs, all Li-ion batteries must have a protection circuit; lead and nickel-based batteries are exempt.
To see how the battery was holding the charge, I took measurements for a few days after completing the repair. 0 hours: 13.20 VDC 24 hours: 12.94 VDC 48 hours: 12.84 VDC 72 hours: 12.77 VDC 96 hours: 12.73 VDC