I’ve tried lots of different cables and wall plugs, sadly all the same. It shouldn’t have got too hot or cold, the weather here is not that extreme. But maybe it is that.
The camera is the EufyCAM, from the Kick-starter campaign, so I guess it is 4 18650’s which is good news as I can easily source those. I just need to get into the thing without doing any damage. I removed the four rear screws but that got me no further forward.
Thanks everybody.
Depending how long you can withstand the camera being out of action, it’s not clear to me how they wired the cells, if it’s series then 1 bad cell is all it takes, you can remove the cells and put through a decent charger (like XTAR, etc) and find the dud one. Anker in general preferred Panasonic 18650, they then got to like LG 21700. If it’s a Lipoly then that’s more custom. I don’t know which but if they used 18650 in the newer 2 model it’s probably also in the earlier.
Just take it slowly with a decent tray underneath to catch the surprising things which fall out and take photos along the way. Hopefully there are no tiny springs inside to spend all night with a flashlight on the floor looking for…
Thanks for the pointers, I have managed to get into the camera without doing too much damage, hopefully only cosmetic. Having extracted the battery it is a bit different to the one in the video. In particular the connection method is different. I suspect it was bought it as a unit.
There is a label that describes it says
Rechargeable Lithium ion battery.
2ICR19/66-2 18650 2S2P.
Model: PA12A22
Rating: 7.2V 6700mAh 48.24Wh
Hu Nan Giantsun Power Electronics Co., Ltd.
CAUTION
Do not disassemble or modify
Do not dispose in fire
Made in China 2018/10/26
I suspect that means that internally it is 4 18650’s wired as 2 serial/2 parallel. I’m not sure how possible it is to get this apart, the easy option is to find a complete replacement pack, which is my first port of call. If that fails I will try to disassemble it and see if I can replace the individual 18650’s.
Thanks for your help.
A final update for this evening. I managed to get the end of the battery package and am now convinced it is 4 18650’s inside, however I’m not sure I could get the individual cells out to replace them.
(I can tell you know this, but as this is an open forum I have to assume someone will come see this later who is not you so apologies if verbose)
So from the photo I’m seeing the right two in parallel connected to the left two in parallel, the left and right are in series. That means it just needs either two from the left or two from the right to be a dud to break the entire battery chain.
It is important you remember the orientation of the batteries, the electronics are expecting a 7.2V from series of two parallel. If you rewire it back wrong, like you make 4 in series you’d risk blowing the electronics.
7.2V arises from two 3.6V in series, that series made up of two 3350mah 18650 in parallel
(parallel you add mAh, serial you add Voltages).
It is unlikely all 4 need replacing. Try taking 1 out,the ones further away from the camera look easier. Put them in a 18650 charger and find the dud. 25% chance you find it from say that back right, 50% chance if you then tried the back left, 75% chance the front right, 100% right by time you tried them all.
The only big error you can make is when you get 4 good cells (replacing whichever is dud) you rewire them in parallel (too little voltage, does no harm but camera not working) or all in series (too much voltage and you probably permanently broke it).
I’m seeing spot solders you’ll have to reproduce them in reassembly.
If you don’t want to replace the cells in this pack then you buy 4 18650 cells, and connect two parallel pairs in series. Each 18650 is 3.6v 3350mAh, connect 2 in parallel to make 3.6V 6700mAh and then connect those parralel pairs in series to make 7.2V 6700mah.
Good luck.
Aside:
But as wired it can fail if 2 cells die.
My camera battery has failed just after 12 months too with Eufy support only willing to offer 20% discount on a new camera. This is really poor service as the claims of 100’s of cycles are obviously not true, I only cycled once! Did you get any response on this regarding anyone who’s managed to get into the camera and replace? I don’t want to buy another cam as my confidence on this product is very low
My Eufy CAM E failed. Battery partially charges and then quickly discharges. Only one recharge cycle as this was the second one. Of course it is a month and 1/2 past warranty. Tech support says sorry.
Emailed support again and they offered a 20% rebate if I ordered from them on Amazon. So I guess O am going to replace this camera with someone’s else’s. My faith in Anker/eufy has dwindled to 0.
Too bad they couldn’t help you
@BHome In the email they sent you, there is an escalate to higher up than the person you dealt with. Invoke that and see what they can do for you at upper management level
Some images for people, for me it wasn’t the battery that failed it was the charger so I’ve added a battery connection for external charging, just haven’t gotten around to putting the cover back on & need to think of a mounting method
Did elevate to a higher level and got the same reply. Sorry but buy another and send us the order number and we’ll refund 20% to your account.
ugh that’s one downside in the world we live in today. it’s cheaper to replace then repair unless you have the tools and knowledge
My Eufy Cam E can’t be loaded and there is no LED. Support can’t help. Is there anyone who can tell me, if there is a option to replace the Accu? Thanks a lot!!!
If you are a skilled tinkerer you could open the camera and replace the battery.
If not, ask someone who can do.
As it is out of any warranty you should do that.
“No risk, no fun” 
My Eufycam 2c pro cam’s battery also drains in a week with no detected events and in optimal battery life setting after 20 months of use only.
Just plug it into a usb c cable and hard wire it.
Of course this will help.
If there is something wrong with the battery and/or the mainboard,
this would be the “last chance”
It should work.
I made this with an old speaker.
Swapped the battery.
Did not help,
So a constant connection to a charger was a kind of solution.
Much better than to .litter the device. 
Hi, I have a camera that won’t charge past 24%, how can I get my unit repaired ? Its about 4 years old
Pete
Ask the support.
But If you are a skilled, open it and swap the battery.
I have just had 2x s330 cameras drop their batteries on the same day. Solar panel coating wore off 12 months ago , anker response was to fit the external solar panel. The system is just on 2 years old and half the cameras are dead with another not going past 13% in full sun all day. Never buy this brand again. I’m going back to my $500 wired system.
