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-   -   I bought a sealed battery for test the long grab (https://forums.steves-digicams.com/sanyo-33/i-bought-sealed-battery-test-long-grab-126627/)

quadspiner Jul 30, 2007 8:16 AM

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I bored with factory battery.

Now, I just bought abattery and 7805 IC

I made a curcuit and testing with an empty battery inside

Normally my adapter is 5.5V 2Ah, but my battery I saw meter that is 5.4V

My new battery I would not charge before

I hope everything OK...

After end test I will report the result...

:lol:

blindsight Jul 30, 2007 8:46 AM

Thanks quadspiner, Iamvery interested to know your result!

quadspiner Jul 30, 2007 9:14 AM

ok It stillcapturing... (about 1h15m...)

battery so narmal temp but 7805 IC make a hot heatsink (too small)

camera narmally hot.

when I zooming battery low icon shown but not effect, It is hidden when I leave a zoom. :lol:



Caelum Jul 30, 2007 9:54 AM

Interesting, but sealed lead batteries weight a ton, wouldn't it be better to just plug the camera in the wall with an/the adaptor? :-)

quadspiner Jul 30, 2007 10:49 AM

now still capturing near 2.50 h

battery low icon appear since 1.50 h

wow... :?

quadspiner Jul 30, 2007 10:52 AM

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ha ha ha :blah:

quadspiner Jul 30, 2007 10:59 AM

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voltteston battery???

quadspiner Jul 30, 2007 12:01 PM

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hey It's nearly 4 Hrs.

I can have a power for outdoor film with 1/6 of factory battery price

(Charger is a tranfromer I buy it same price, I must control charge time myself)

Edit: Ithink to buid a compactsocket to power in camera...


Caelum Jul 30, 2007 12:07 PM

quadspiner wrote:
Quote:

[...]I can have a power for outdoor film with 1/6 of factory battery price[...]
Good point.

quadspiner Jul 30, 2007 1:01 PM

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five hours...

now my card near full (2GB)

:?

quadspiner Jul 30, 2007 1:31 PM

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ok battery down to empty now with a little space.

:cool:

quadspiner Jul 30, 2007 1:35 PM

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About 5.29hrs clip testedthat correct to view.

Everything good but I need a camera bag.

I hope after this battery return with full charge It'll male me happy.

Unoffical test end.

:G

blindsight Jul 30, 2007 2:30 PM

Hey quadspiner,

Thanks for your test. Since I dunno much about electricals/ electronics,my apology first Iwant to repeatsome questions:

The voltage of your external lead battery is 5.5V, but you are using a "7805" 5V regulator, correct?

(Does a regulator controls the voltage AND the current, or it only does the former, and the charging current is determined by the voltage difference (or something else) between the power source and the battery to be charged?)

And you do have a drained (empty)battery inside the Xacti camera, right?

When you hook up the external battery through the regulator, into the camera via USB, the camera switches on and records immediately, despite an empty (drained) battery inside the camera, right? (Which means the camera is directly drawing power from the external battery, and the drained internal battery only "completes the circuit" to allow current to flow through).

And you don't find the battery compartment too hot (or hotter than usual when you normally use the camera with the internal battery) at the end of the test, right?

I guess the only thing which is not tested is the long term effect on the internal battery and the camera - I guess if it doesn't get too hot inside the camera when the external battery is connected, I don't thinkexcessive energy from the external battery has been dissipated as heat (to the battery and the camera), and it should be quite safe (I hope).

I hope that all the above questions answer "yes", because you may have answered some of the questions I posted about external power source. I would probably buy the Li-ion battery Iwas looking intoand see if it works.




quadspiner Jul 30, 2007 8:18 PM

:?

In the test I always touch the battery. It isn't hot.

This battery inside camera almost empty. (not 0%)

I use this camera for a long time. I always useext powerfor filming.

I have a experience when I using only ext power. when ext power

error (someone kick my plug). camera will power down with lastcapturing file error.

Then, I insert a factory battery for when have an accident with ext power

It's switch to factory battery automatically. last file capturing will safe.

Empty battery will shown. OKthere is noerror.

Yes my opinion is going right. I use it many months. :G

- My meter may error but I check with 123A battery.It's 3V.

- My factory almost empty.If it live alone I' can't record (It's shown EMPTY BATTERY)

- My factory battery(s) I check it. It's about 4V.???

- My using adapterI check it. It's about 5.6V???

- I don't know the future but warranty is gone out in my mind since I bought it from gray market.

- My curcuit is has only 7085 IC.


Edit: My camera alawys hot when I capture a long time. int battery or ext power is the same.

blindsight Jul 30, 2007 9:08 PM

Thanks quadspiner for taking the time to answer my questions. I'll buy the Li-ion external battery with USB output and give it a try, since I don't have the know-how on fixing my own electronic circuits. I just hope that the Li-ion battery's USB output is regulated to 5V (USB standard).

quadspiner Jul 31, 2007 12:56 AM

blindsight wrote:
Quote:

Thanks quadspiner for taking the time to answer my questions. I'll buy the Li-ion external battery with USB output and give it a try, since I don't have the know-how on fixing my own electronic circuits. I just hope that the Li-ion battery's USB output is regulated to 5V (USB standard).
Ah! please checkthe power is enough for DC in

Because DC INPUT should have about 2Ah for drive the camera and charge a int batt.

And must have a switch on the batt to easy open/close the system!

:cool:

blindsight Jul 31, 2007 10:34 AM

This is the product I am thinking about:

http://www.usmodular.com/MCE/default/0/product/2289

It says the output is 5.5V/ 700mA, capacity is 3400 mAh (3.4 Ah). The battery charger of the Xacti is 4.2V/ 650 mA. I think if the voltage and current capacity are both higher than the Sanyo battery charger, it should charge without problem. Unfortunately there is no user manual or detail information to download from the manufacturer website.

quadspiner Jul 31, 2007 4:48 PM

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OK I found something that make me take a risk.

I try to reduce heat for 7805 IC. Dual ICs doesn't work. It still hot.

I remove all curcuit...

quadspiner Jul 31, 2007 4:52 PM

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I decided jump all leads to camera.

This may not safe for everyone...

I'll test how long is going

Because 7805 IC lock power limited 1.5Ah.

I think when It hot, power will decrese and not enough for drive my camera...

:?


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