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Battery charger required - Pentax Optio 330RS Digital Camera

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Can I leave the battery charger plugged in my Dyson dc 44 animal after it is fully charged?


Hi, I have a Dyson DC56 with a lithium battery for about 18 months and I leave it plugged into it's charger when not in use. I do notice the Dyson charger seems to switch off automatically when charged. I don't have any problems so far. It you have a Genuine Dyson Lithium battery and the genuine Dyson charger it should not be a problem. That is because Lithium batteries have very precise requirements for their charging cycles and therefore the correctly designed charger required to make them work safely is a somewhat intelligent design and needs to be of good quality in having to meet those requirements. So use the original Dyson Charger. Also most high current Lithium Batteries will also have a protection circuit built in further increasing safety and reliability. Just don't use cheap cloned Chinese made Lithium chargers, because you will never know if they have been designed or even will operate correctly.
Now if you have old technology Ni Cad (Nickel Cadmium), LA (Lead acid) or NiMH batteries with basic cheap chargers they should not really be left connected to a charger full time.

Dec 07, 2016 | Dyson Vacuums

1 Answer

Battery went dead put charger on battery and charger shuts off.


the reason for this may be the way you have attached the battery charger leads
charging batteries require the positive lead of the charger to be clipped to the positive terminal of the battery
likewise the negative lead of the charger goes to the negative terminal of the battery
I suspect that you are hooking positive to negative in which the charger will go into overload protection and shut down.

May 07, 2015 | Cell Phones

1 Answer

Where can I find a replacement charger for this?


any charger that meets the requirement of voltage battery type and charge rate and the battery pack just fits in will do the job. It has to be suitable for either a nic cad battery pack or ni hi battery pack which require different chargers

Jun 29, 2013 | Channellock Channel Lock 4v Dual Driver

1 Answer

My acer aspire 7520-5185 will not turn on


Hello. There is a hardware failure with the laptop not the AC charger. AC chargers have some range of protections of their own. If the power requirements of the laptop are bigger then what the charger can handle, the charger will turn off. Also other parameters can bring the charger offline. In your case, you have a problem with a small chip, the battery charge controller unit, witch regulates the amount of current required to propperly charge the battery. When this thing fails, the charging requirements for the battery are reported rong and the AC charger is forced to give more power then necesary. This results in disconnection of the AC charger ( an internal fail safe of the
AC charger) and the laptop to swich back to battery power. When the laptop is turned off, it can charge the battery because the power requirements are low, having all processor, main board, hard disk etc turned off. Therefore the AC charger can handle the load. However you will need to have it checked by a service center as it is a hardware fault. Both AC charger and laptop needs that check.
The charge controll circuit needs to be replaced probably. It will be a somewhat expensive repair. Don't buy any other battery untill you have the laptop checked.

Acer Aspire 7520

Jan 13, 2013 | Acer Aspire 7520-5185 Laptop

2 Answers

Acer laptop 4730z wont power up


Hello. There is a hardware failure with the laptop not your acer 4730 AC charger. AC chargers have some range of protections of their own. If the power requirements of the laptop are bigger then what the charger can handle, the charger will turn off. Also other parameters can bring the charger offline. In your case, you have a problem with a small chip, the battery charge controller unit, witch regulates the amount of current required to propperly charge the battery. When this thing fails, the charging requirements for the battery are reported rong and the AC charger is forced to give more power then necesary. This results in disconnection of the AC charger ( an internal fail safe of the AC charger) and the laptop to swich back to battery power. When the laptop is turned off, it can charge the battery because the power requirements are low, having all processor, main board, hard disk etc turned off. Therefore the AC charger can handle the load. However you will need to have it checked by a service center as it is a hardware fault. Both AC charger and laptop needs that check. The charge controll circuit needs to be replaced probably. It will be a somewhat expensive repair. Don't buy any other battery untill you have the laptop checked.

Dec 23, 2012 | Computers & Internet

1 Answer

DV7 did not working from fully gharged battery


Hello. There is a hardware failure with the laptop not the AC charger. AC chargers have some range of protections of their own. If the power requirements of the laptop are bigger then what the charger can handle, the charger will turn off. Also other parameters can bring the charger offline. In your case, you have a problem with a small chip, the battery charge controller unit, which regulates the amount of current required to propperly charge the battery. When this thing fails, the charging requirements for the battery are reported rong and the AC charger is forced to give more power then necesary. This results in disconnection of the AC charger ( an internal fail safe of the
AC charger) and the laptop to swich back to battery power. When the laptop is turned off, it can charge the battery because the power requirements are low, having all processor, main board, hard disk etc turned off. Therefore the AC charger can handle the load. However you will need to have it checked by a service center as it is a hardware fault. Both AC charger and laptop needs that check.
The charge controll circuit needs to be replaced probably. It will be a somewhat expensive repair. Don't buy any other battery untill you have the laptop checked.

Replacement HP Pavilion DV7 Smart AC Adapter 90Watt 19V 4.74A

Nov 25, 2012 | HP Pavilion dv7-1130us laptop

1 Answer

Have a Fire Storm place battery in charger green light comes meaning full charge but place in drill there is no charge. Is it a new battery, or new charger, or new drill required


if you have one check the battery and charger with a meter. if there both fine check the prong's on the battery and the power tool. if charger is'nt charging check the fuss in the charger.. good luck let me know.

Oct 16, 2009 | Black & Decker 18 Volt Cordless Drill...

2 Answers

Using battery charger with 3.42A vs 4.74A for lap top


YOu can always use higher amps when required but not lower than required. Voltage should stay the same as original charger - keep it in mind.

Mar 02, 2009 | Acer Aspire 5100-3357 Notebook

1 Answer

Showing battery full when charger is on though the battery requires recharging


may be phones software is currupted or check the battery in other mobiles

Mar 10, 2008 | Cell Phones

1 Answer

My PC won't run with ac /dc power!


Hello. There is a hardware failure with the laptop not the AC charger. AC chargers have some range of protections of their own. If the power requirements of the laptop are bigger then what the charger can handle, the charger will turn off. Also other parameters can bring the charger offline. In your case, you have a problem with a small chip, the battery charge controller unit, witch regulates the amount of current required to propperly charge the battery. When this thing fails, the charging requirements for the battery are reported rong and the AC charger is forced to give more power then necesary. This results in disconnection of the AC charger ( an internal fail safe of the AC charger) and the laptop to swich back to battery power. When the laptop is turned off, it can charge the battery because the power requirements are low, having all processor, main board, hard disk etc turned off. Therefore the AC charger can handle the load. However you will need to have it checked by a service center as it is a hardware fault. Both AC charger and laptop needs that check. The charge controll circuit needs to be replaced probably. It will be a somewhat expensive repair. Don't buy any other battery untill you have the laptop checked. For more aditional info please post back. PS. Sorry for my bad english, I am from Romania, it is pretty hard for me to explain tehnical stuff in english.

Feb 12, 2007 | Sony VAIO FRV28 Notebook

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