G138 batteries

My batteries died after I got it and
decided to go do open heart surgery.

I found out alot of other PDA uses these batteries and the circuit board.
Google is good even though the goverment wtches..lol

I took (cut) off the plastic black casing. 2 batteries
with small circuit board with 4 wires and attachment
to both ends of the batteries.

SAMSUNG IS THE MAKER.

S/F,
CEYA!

Website
http://www.samsungsdi.co.kr/contents/en/product/battery/type01_ICR18650_20.html

INFORMATION

Cylindrical Model
- ICR18650-20

- ICR18650-22

- ICR18650-24

THE COMPUTER HAS # 20 AND # 22


Features : High Capacity and Stable Discharge Voltage.
Outstanding Discharge properties and Storage
Capability

Applications : various Portable Devices such as N/PC,
DSC, DVC


Nominal Capacity*1 2,000mAh

Nominal Voltage*2 3.7V

Dimension D 18.25mm, H 65.0mm

Charge Method Constant Current
Constant Voltage (4.2V)

Max. Charge Current 1CmA (2,000mA)

Max. Discharge Current 2CmA (4,000mA)

Discharge Temperature -20°C ~ +60°C

Weight (approx.) 44g

Energy Density 448Wh/I, 172Wh/kg

Charging Time Standard : 3hrs.
Rapid : 2.5hrs.


* 1 : Nominal Capacity : 0.2C, 2.75V cut-off :
Average Discharge Capacity.
* 2 : Nominal Voltage : 0.2C, 2.75V cut-off :
Average Discharge Voltage.

Now,
Google for that cell with a higher capacity rating-you state 2000mah, try to get say 2200 or 2400 to replace the cell in yours. Instant upgrade!! My 720 and one of my 680's now sport 2200mah cells. They work good.

Moe

Thanks Ceya for all the information.

I kinda doubt the batteries would die so quickly tho, I mean these SmartBooks are quite new. Try charging it again. Make sure you have a working power adapter tho - the machine should turn on with the power adapter even if the batteries are completely dead. Then watch the battery gauge. BTW it's a good thing that the power meter in CE.Net shows the charge in percent, just like PC Windows.

BTW, please note that Ceya says there are two batteries, and they are 2000mAh each. That makes 4000mAh total. Crazy huh

yeah it works with the AC Cord but not on battery power. I will post pics..you can post pics? i should have taken pics of the inside the computer but forgot since i wanted to test out the computer again to see if it worked.
S/F,
CEYA!

Not always. Depends on the way they are wired. The 2 cells in my jornada are 3.6volts, 2200mah. If they where wired in parallel, total voltage would still be 3.6volts, and it would be 4400mah. But because they are wired in series, total voltage is 7.2volts and 2200mah. That is the way I understand it to be. Somebody please correct me if I am wrong.

Moe

my jornadas have 2400's

about the battery meter. it isn't cenet. it is the OEM's decision. the Aero 8000 with hpc pro could do this, and the nec 900c with cenet cannot.

no, not 4000 mAh, only 2000 mAh @ 7.2V-7.4V MoMagnum's right

Thanks for the explanation MoMagnum. I totally forgot about the voltage.

Yeah that makes more sense because my SmartBook (7.2V 2000mAh) doesn't last quite as long as the Jornada (7.2V 1960mAh). I think it's very much due to the backlight. It has a much larger area, and for some reason I tend to need a higher brightness on the SmartBook than I needed on the Jornada.

Thanks for the light! I only had the Jornada and SmartBook to compare, and drew conclusions too quickly I don't know why the OEMs would not go for the percentage display tho. Hey can you ask TFGBD if he can release the percentage power meter for everyone? Or is it easier to find a freeware...

i think it is the TFT oh well..

b/c most OEM's are dumb

i'm afraid it isn't just a percentage power meter, it needs to have a more substantial support in the hardware or something.. i think snappy once explained but i forgot...
sometimes the freeware battery meters can help a little, for example the wibook won1t show percents by default but i use gsbattmon and that does show them in percents wow. or the bsquare, that's also very poor by default, good, low and very low... with gsbattmon i can get estimates in 20%... better than the original in control panel

http://www.all-battery.com/index.asp?PageAction=VIEWPROD&ProdID=461

i found a site selling the icr 18650. 4 pack

Tenergy is the name of the site. The pics is how the ones in the omputer look like.

4 Li-Ion 18650 3.7V 2200 mAh rechargeable battery with protection PCBDetailed Description
FEATURES AND BENEFITS
- Lithium Ion 18650 cylindrical rechargeable batteries
- 3.7V 2200mAh high capacity
- Higher energy density and lower weight than other types rechargeable batteries
- Manufactured under ISO9001-2000 to assure quality
- Internal PCB protects against under and over charging- low voltage 2.8, high voltage 4.2.
- Battery tested based on International Electrotechnical Commission (IEC) standard to ensure capacity, quality and life time

Applications:
- Building Laptop Battery
- Building portable power device needing high energy density and low wieght

Cautions:
- Use special caution when working with Li-ion cells, they are very sensitive to charging characteristics and may explode if mis-handled.
- Make sure user has enough knowledge on Li-Ion rechargeable batteries in charging, discharging and assembly before use.
- We are not resposible for any damage caused by misuse or mishandling of thses Li-Ion batteries

Product Specifications:
- Capacity* Nominal 2200 mAh, Minimum 2150 mAh
- Dimensions:
Diameter 18+/10.2 mm
Height 68+/- 0.2mm
- Weight (Typical) Approx. 46 g yes
- Nominal Voltage: Average 3.7V
- Cut-off Voltage: 3.0V
- Internal Impedance: less or equal to 180 milliohm (with PTC)
- Cycle Performance: 90% of initial capacity at 400 cycles
- Cycle life: > 500 cycles
- Charge: Current = 0.5C mA Voltage = 4.2 V End Current = 0.01 mA
- Discharge: Current = 0.5C mA End Voltage = 3.0V
- Max. Charging current: 1.5C ma
- Max. Discharging current 1.5C ma (for continuous discharge)



they also have quanity discount.

Quantity Discounted Price
2-5
$22.60 (Per Item)

6-12
$21.40 (Per Item)

13-25
$20.20 (Per Item)


S/F,
CEYA!

batteryspace.com has higher capacity 18650's (2400 mAh) much cheaper (there's a discount too with larger quantities) around 8$ each + 0.25 tabbed option

Thanks, they have some on sale for 5.99 each.


S/F,
CEYA!

I got the battery assembly taken a part fairly easy. I have the two batteries.
They are taped together on the ends and middle. They have black pads to cover the contacts on the end also .

I am about to order the batteries below.

2400, 2200, 2000 - 18650. 4 of each. 3.6v and 3.7v

I have started working on the Intermec 6651 battery casing and hope to have it taken apart soon. those casing are closed shut.

wish me luck!


S/F,
CEYA!