Before using Canon digital cameras are A200 (2,000,000 pixels), with two section v battery bought years ago, N, hard to use, often appear battery alarm, unbootable. Therefore, this change a thousand yuan to buy is around 800 million pixels A590 (, ah, I how can use low grade), with two section v battery, originally thought had for so many years, Canon should solve this problem for the battery alarm,… Johnson is difficult to use! Alkaline battery pack, not for a long time, and then cannot use the alarm. 5 nimh batteries charging more miserable, just full of electricity, can put in a period of time, if the battery is put half month 10 days, not a few will alarm, then can’t use, should remove battery pack again, and can take some tickets. Buy a 2000MAH, 2300MAH product – a good batteries etc, buy to buy, or bad to use! The battery pack can pat to other appliances, also full of electricity! So the battery recharging, full of battery is very bad, reoccupy and use, it is difficult to use other appliances, with a long time to finish, put simply use alkaline batteries.
Then think not the reason, is buying again good nimh batteries, still have the problem, and spent a lot of money to buy batteries, battery pile, are not.

The main reason is:

1 the self-discharge nimh batteries. Self-discharge are serious, battery put a period of time, the voltage, resistance and camera can not open the machine. Often is a heap, rechargeable battery someday to clap a temporary, battery can use, only to find the alkaline battery, results and alkaline batteries with a heap, money into a waste of money. With nimh batteries, full of electricity, first, reoccupy. Troubles.

2 the camera battery alarm causes.
People say this camera design problems, I Canon to play a part, is really a Canon camera alkaline battery design. But in low voltage, current camera is too big, various reasons (such as contact resistance) are caused by bad rechargeable batteries. In fact, the most suitable to use the camera is alkaline battery (should be designed for camera design alkaline batteries, ordinary alkaline battery is so-so), 1.5 V voltage, 2 3V. Ni-mh battery section is only 120 V, low much.

Find the reasons:
Detection of Canon camera voltage:
Take 1502 (15V, 2A) maintenance adjustable power, plug into the camera A590, measured again:
Plug and camera is the contact resistance between, plug smaller, contact resistance, so will also have error detection, current, the smaller the smaller error.

Testing results:
1 voltage, camera battery voltage alarm appeared to high, battery alarm wouldn’t disappear unless off again,

2 check, the image of current relatively small, current 200mA about. At this moment, less than 225 V, battery alarm, then turning the voltage than at 2.30 V, battery alarm will disappear. Voltage or 2.02 V, camera shutdown, “replacement battery;”

3 shooting, LCD, then open, plug the current caused more contact resistance. Then, the voltage and current is 2.5 V about A half, by 0.5 to shutter, current 1A again, to 0.6 A.
About less than 240 V (voltage 2.37 V), voltage alarm.
Voltage 2.5 V, easy to appear sometimes difficult to boot, battery alarm, sometimes can open, sometimes not open, sometimes a shoot will shutdown. (so measure off voltage meaningless)
Voltage can be 3.5 V, normal boot, normal use. Current, only A half width to press shutter, current around A rush to 0.6 than 2.5 V when the voltage, small A lot!!!!!!!!!!
Canon (outer power supply voltage is the standard output V) –

Results:

Contact resistance is measured, can assume the contact resistance and we plug in contact resistance of battery pack, the 2.5 V is difficult to use the voltage, often can not open the machine.
To know nimh batteries before discharging voltage standard 1.1 V, 2 only 2.2 V, only with a battery, will only to 1.3 V above. So, to use nimh batteries only works with electricity. Self-discharge… Hey hey
Although the alkaline battery voltage, but 1.5 V anti-shocking test shows that, the main discharging voltage in general 1.1 V – 130 V (see online assessment report), so, the alkaline battery for a while and it can’t use, is normal.

To solve the problem:

Better is a camera, change with the lithium electricity, 3.7 V, but this is not true, I was not rich.
Li-ion battery voltage, current, contact resistance is small will affect smaller,
Low self-discharge lithium electricity, put a period of time, take out again with that! This is very important.
Lithium electricity is the fifth, size and 14,500 battery is big, can buy from taobao. Once a day, only with 2 will burn machine.
One day the lithium electricity directly to use? NONO take you, full of electricity 4.2 V, camera, but may the flash may effect?? Dare not. But how low voltage electric voltage, lithium can discharge, otherwise than 2.7 V soon.
A false batteries, inside a diode buck! On the market to become 3V lithium electricity. Is the capacity and small lot. Fish and bear’s paw!

OK, begin to make a battery pack hole 14,500 li-ion battery (DLG, no protection board, 3.6 700mAH V, and full of electricity 4.2 V), another battery hole hypocrisy battery (diode).
Battery anode without convex, mount, so a small protruding. Welding
The battery is difficult to do, I do, but a string for two diode, pressure drop, use 1.1 V feel good, but the pressure drop may be bigger, a battery or doesn’t work well. May the battery and relevant quality. In general, not much better than the original is not a machine or not.
Mount diode, battery capacity only about 500mAH V, 3.6. Capacity is low, with low is most important!!!!!!!!!!!!!!! 2300mAH 1.2 V, but not the old alarm, machine, have what use?

Next time, do only a diode, a false battery try…
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Netizen breeze said: if you want to change junfolding lithium electricity use 14,500 of lithium iron batteries.
I checked, good, phosphoric acid of lithium iron batteries more suitable than normal li-ion battery voltage is suitable!
Netizens said with sanyo low put Enloop battery since. I think a problem, but self-discharge contact resistance is also a problem, also is a problem, low use sanyo low Enloop since the battery, I think there will also be the alarm. Batteries,
Therefore, the conclusion is as follows:
(1) the use of lithium iron batteries 14,500 phosphate (3.2 V, 500mAH, full of electricity is 3.6 V), plus a conductor electricity body (false batteries, no diode, direct conduction), with 3.6 V charger, these three things are sold in TAOBAO, can search. The electricity is about 2000mAH nimh 1/3, but won’t appear battery alarm.
Two (2) from the lower section sanyo Enloop batteries, at least some of the common nimh better. Large capacity, but also possible. Battery alarm
(3) if there is 14,500 ordinary li-ion battery (3.6 V, 700mAH, is full of 4.2 V), false cell is a diode, remove 0.7 V pressure drop. The false battery pack diode, need to do some can DIY. This way, electricity and (1).
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
2009.7.12
A 6A07 only a diode (6A, pressure drop about 0.7 V) fake batteries, deserve to go up 3.7 V 14,500 li-ion battery (4.2 V) with electricity is very good, and found that the camera!
(the positive and negative false battery plate more difficult, then open the cheap sex, carbon anode is dry, can take down, also very good welding, ha, will bring positive pole, compared with do for good measure, the diode is good welding. Alkaline battery encapsulation very well, don’t move.
Li-ion battery charger is using my mobile phone TL431 (fortress seat charger, 4.2 V constant-voltage) change.
In a few months, very good!