Archive

Posts Tagged ‘electronics’

Battery Charging Voltage

December 4th, 2009 admin No comments




Battery Charging Voltage

HP/Compaq Business NoteBook 6715B Battery charging problem

Today I got HP/Compaq Business NoteBook 6715B Battery for repair with the battery charging problem. It is a new model and we do not have a lot of experience with these laptops. The customer complained that the laptop will not charge the battery when it is plugged into the AC outlet.

HP/Compaq Business NoteBook 6715B Battery 6 cells 4400mAh

The laptop failure symptoms:

The laptop will not turn on when I try to start it from the battery. When the laptop is turned off and plugged into the AC outlet the battery charge LED doesn’t light up. I know that the battery is not charged and the LED should light up when I plug the laptop into the AC outlet. The laptop starts fine when it is plugged. When I move the mouse over the HP Power Icon in the lower right corner, the balloon will pop up and there is a line in there: Battery Remaining: N/A.

The problem repair procedure:

You can easily fix the problem just by updating the BIOS. HP says that the BIOS version should be at least v1.30. So, go to HP/COMPAQ website and click on Downloads. Select your laptop model and find any downloads for the BIOS. In the BIOS change history you will see the description of changes.

After I updated the BIOS, The HP/Compaq Business NoteBook 6715B Battery charging problem disappeared.

HP/Compaq Business NoteBook 6715B Battery 6 cells 4400mAh Description:
Type: Li-ion, 6 cells
Voltage: 10.8V
Capacity: 4400mAh
UL certificated cells inside!

About the Author

http://www.udtek.com
We have powered the devices of mobile computer users. Udtek delivers high quality laptop parts and accessories with a high level of service. Our unique product lines of over 1000 diverse accessory products and replacement parts provide our customers with an extensive selection of the best quality products available.

Our areas of product expertise include Laptop Batteries, Laptop AC Adapters, Laptop Keyboards, Laptop DVDRW drives, Universal AC Adapters, Lcd Chargers, Scooter Charger and growing.

Our products fit with over 10,000 models of Laptops, Scooter, Lcd from leading brands including Sony, Dell, IBM, Toshiba, Apple, Compaq, HP, and many others.

OneStep Battery Analyzer / Battery Charger - OTC Part 2

NEW 3600mAh BATTERY PACK CONTROLLERCABLE FOR XBOX 360
NEW 3600mAh BATTERY PACK CONTROLLERCABLE FOR XBOX 360
Paypal   US $.01
74v 850mah 15c lipo battery for RC helicopter LAMA
74v 850mah 15c lipo battery for RC helicopter LAMA
Paypal   US $2.50
Sport Stereo MP3 Player Headset Headphone SD MMC Reader
Sport Stereo MP3 Player Headset Headphone SD MMC Reader
Paypal   US $9.99
8GB Waterproof HD Spy Watch Camera DVR Record 8MP S2W
8GB Waterproof HD Spy Watch Camera DVR Record 8MP S2W
Paypal   US $13.71
NB 6L BatteryCharger for Canon Powershot SD1200 IS D10
NB 6L BatteryCharger for Canon Powershot SD1200 IS D10
Paypal   US $9.89
BC CSD Charger For Sony NP FR1 NP FT1 Battery E835
BC CSD Charger For Sony NP FR1 NP FT1 Battery E835
Paypal   US $2.46
Waistband Portable PA Voice Amplifier Speaker Megaphone
Waistband Portable PA Voice Amplifier Speaker Megaphone
Paypal   US $66.00
Portable 5W Monocrystal Solar Panel charge car battery
Portable 5W Monocrystal Solar Panel charge car battery
Paypal   US $36.99
cheerleading megaphone loud portable pa voice amplifier
cheerleading megaphone loud portable pa voice amplifier
Paypal   US $49.00
2 x BL 4L Battery Wall Charger for Nokia E52 E55 E61i
2 x BL 4L Battery Wall Charger for Nokia E52 E55 E61i
Paypal   US $5.93
9 in 1 Accessory Case Mega Pack Bundle For Nokia N900
9 in 1 Accessory Case Mega Pack Bundle For Nokia N900
Paypal   US $12.33
2 x BL 4D Battery Wall Charger for Nokia N97 Mini
2 x BL 4D Battery Wall Charger for Nokia N97 Mini
Paypal   US $5.49
2 x Battery Charger For HTC Legend G6 Nexus One G5
2 x Battery Charger For HTC Legend G6 Nexus One G5
Paypal   US $11.42
2 x BL 5F Battery Wall Charger for Nokia N93i E65 N95
2 x BL 5F Battery Wall Charger for Nokia N93i E65 N95
Paypal   US $5.93
2 x BL 5J Battery Wall Charger for Nokia N900 X6 5800
2 x BL 5J Battery Wall Charger for Nokia N900 X6 5800
Paypal   US $5.99
10 Accessory Mega Pack Bundle f Samsung Galaxy S i9000
10 Accessory Mega Pack Bundle f Samsung Galaxy S i9000
Paypal   US $12.33
9 item Protector Case Pack f SonyEricsson Satio iDou U1
9 item Protector Case Pack f SonyEricsson Satio iDou U1
Paypal   US $12.33
8 in 1 Accessory Mega Pack Bundle For Nokia E71
8 in 1 Accessory Mega Pack Bundle For Nokia E71
Paypal   US $9.59
8 in 1 Accessory Mega Pack Bundle For Nokia X6
8 in 1 Accessory Mega Pack Bundle For Nokia X6
Paypal   US $9.59
3 Million Volt Stun Gun w Flashlight and Pepper Spray
3 Million Volt Stun Gun w Flashlight and Pepper Spray
Paypal   US $11.00
New 16GB Waterproof HD Spy Watch Camera DVR Record S1W
New 16GB Waterproof HD Spy Watch Camera DVR Record S1W
Paypal   US $32.00
Spy Pen Video Camera Hidden Recorder DVR Camcorder New
Spy Pen Video Camera Hidden Recorder DVR Camcorder New
Paypal   US $.01
BC CSGB Charger For Sony NP BG1 NP FG1 Battery E836
BC CSGB Charger For Sony NP BG1 NP FG1 Battery E836
Paypal   US $2.32
35 Million Volt Mini Stun Gun LED Light Rechargeable
35 Million Volt Mini Stun Gun LED Light Rechargeable
Paypal   US $12.99
NP BG1 FG1 Battery Charger Sony CyberShot H3 H7 H9 H1
NP BG1 FG1 Battery Charger Sony CyberShot H3 H7 H9 H1
Paypal   US $10.99
Garmin Oregon 550 450 vehicle power cable 010 10851 11
Garmin Oregon 550 450 vehicle power cable 010 10851 11
Paypal   US $7.88
AC Laptop Adapter In DC12V Car W 5V 2A USB Charging
AC Laptop Adapter In DC12V Car W 5V 2A USB Charging
Paypal   US $9.99
Woddon Salvation 30 3Ch Mini IR RC Helicopter
Woddon Salvation 30 3Ch Mini IR RC Helicopter
Paypal   US $22.90
12V Car Charger 150w For AC110V Laptop w 5V 2A Max USB
12V Car Charger 150w For AC110V Laptop w 5V 2A Max USB
Paypal   US $25.95
CB 5L Charger For Canon BP 511 BP511 Battery E823
CB 5L Charger For Canon BP 511 BP511 Battery E823
Paypal   US $3.42
BP 4L Charger Battery Pack for NOKIA E71 E63 N97 E55
BP 4L Charger Battery Pack for NOKIA E71 E63 N97 E55
Paypal   US $6.12
2x Battery Rechargeable for Xbox 360 controller Cable
2x Battery Rechargeable for Xbox 360 controller Cable
Paypal   US $3.65
24V 5A 120W SOLAR REGULATOR CONTROLLER FOR SOLAR SYSTEM
24V 5A 120W SOLAR REGULATOR CONTROLLER FOR SOLAR SYSTEM
Paypal   US $19.99
24V 5AMP SOLAR REGULATOR CONTROLLER FOR SOLAR SYSTEM C
24V 5AMP SOLAR REGULATOR CONTROLLER FOR SOLAR SYSTEM C
Paypal   US $21.00
BATTERYCHARGER FOR CANON POWERSHOT SD600 SD750 SD630
BATTERYCHARGER FOR CANON POWERSHOT SD600 SD750 SD630
Paypal   US $8.97
Bluetooth Sunglasses hidden camera MP3 306
Bluetooth Sunglasses hidden camera MP3 306
Paypal   US $87.32
Digital Solar Panel Battery Control Regulator 30A 720W
Digital Solar Panel Battery Control Regulator 30A 720W
Paypal   US $79.99
5w 12v power portable solar panel charger batteryAU
5w 12v power portable solar panel charger batteryAU
Paypal   US $.01
5w 12v power portable solar panel charger battery NZL
5w 12v power portable solar panel charger battery NZL
Paypal   US $.01
Wireless bluetooth headset handsfree mobile phone PS3
Wireless bluetooth headset handsfree mobile phone PS3
Paypal   US $9.99
Powered by phpBay Pro
Skystream 1-CRBC-10 Battery Charging Controller Kit with battery voltage switch Skystream 1-CRBC-10 Battery Charging Controller Kit with battery voltage switch

 
GSI Super-Quality Replacement Laptop Computer AC Adapter, 19V 3.42A 65W Battery Charger, Power-Supply Cord For Gateway Liteon MX Series Notebook - Functions Exactly as Gateway OEM Models PA-1650-02, MT6840, ADP-65HB. GSI Super-Quality Replacement Laptop Computer AC Adapter, 19V 3.42A 65W Battery Charger, Power-Supply Cord For Gateway Liteon MX Series Notebook - Functions Exactly as Gateway OEM Models PA-1650-02, MT6840, ADP-65HB.

 
GSI Super-Quality Replacement Laptop Computer AC Adapter, 19V 65W 3.42A Battery Charger, Power-Supply Cord For Acer Aspire 1412LCI, 3610WLCI; Extensa 4420, 4630Z, 5420, 5620, 5620Z, 5630Z - Functions Exactly as Acer OEM Models GSI Super-Quality Replacement Laptop Computer AC Adapter, 19V 65W 3.42A Battery Charger, Power-Supply Cord For Acer Aspire 1412LCI, 3610WLCI; Extensa 4420, 4630Z, 5420, 5620, 5620Z, 5630Z - Functions Exactly as Acer OEM Models

 
GSI Great Quality 2-in-1 Laptop/Notebook Replacement Battery & Charger Package - High Capacity 9Cell 7200mAh Lithium Long-Life Battery + 90W Fast Charge AC Adapter/Charger/Power-Supply/Cord - For Dell XPS M1530. GSI Great Quality 2-in-1 Laptop/Notebook Replacement Battery & Charger Package - High Capacity 9Cell 7200mAh Lithium Long-Life Battery + 90W Fast Charge AC Adapter/Charger/Power-Supply/Cord - For Dell XPS M1530.

 
CHARGING SYSTEM FOR HARLEY-Frontiercycle CHARGING SYSTEM FOR HARLEY-Frontiercycle

 
Evaluation of automotive starting batteries using simple constant voltage charging techniques (SAE) Evaluation of automotive starting batteries using simple constant voltage charging techniques (SAE)

 
CHARGING: Open Circuit Voltage Sampled.: An article from: Battery & EV Technology CHARGING: Open Circuit Voltage Sampled.: An article from: Battery & EV Technology