Question about Sanyo MM-7400

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Sanyo 7400 keeps draining battery with calls .B attery only 5 months old

Hi . Battery is draining only after 2-3 hours use. Phone tells you it needs to be recharged after making one phone call . one tells me its the battery, the other tells me its the phone. What do you think? Thanks Brian.

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  • 4 Answers

Try a new battery. They're on ebay for cheap.

Posted on May 02, 2008

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2 Answers

How do I stop the battery from draining after only a few hours.


try letting the battery completely die and recharge it. Do this 2 or 3 times. Sometimes "topping up" a partially charged battery puts a memory into the battery and it wont allow you to do full charge.. I let my Nokia get to its last legs before replacing the battery with a spare and then fully charge the other one. Both batteries are now at least 6 years old.. Yes , its an old phone...

Apr 08, 2015 | Tracfone Wireless LG 440G

1 Answer

I'm using Nokia E63, my battery was gone a month before, so i bought a new BP-4L from Nokia point, it only gives 2 days standby back up, which my old one gaves me 5 to 6 days. is there something i


I will tell you what! I own 3 Nokia phones. And I know how to extend battery life (before recharge is needed) by UNloading the battery! Turn off location services, wifi, cellular data, and automatic updates, and only use them when you NEED them ... then, OFF they go!

During the Obama administration, they started TRACKING every citizen (and perhaps non-citizens too), 24/7/365.25! That is a terrible waste of battery power on all cell phones. Without all those TRACKING services on, my batteries (one per phone) can go for WEEKS without a recharge!

May 12, 2017 | Nokia BP-4L Battery

1 Answer

3 month old new phone. samsung tocco lite. battery problem


1) faulty battery - you'd need to get a replacement from the manufacturer (should be free if still under warranty)
2) when you initially charged the battery after purchasing, if you used it at all before it was completely charged it won't hold a charge.
3) if you live or travel in mountain area, phones lose battery power quicker due to an increase in elevation and distance from nearest tower.
4) if phone has been exposed to moisture or direct sunlight for an extended amount of time, it can damage the phone's ability to hold a charge.

honestly, your best bet is to replace the battery & allow it to charge for 24 hours in "off mode". if the problem persists, then send it in to be repaired.

Mar 19, 2010 | Lands Phones

1 Answer

Cellphone was dropped accidentaly in a tub full of water


Yikes, try the old standby- remove the battery, sim card, memory card, and get out a hair dryer. Set it on low and carefully blow warm air into every nook and cranny of the phone for about 5 mins. Then blowit on everything else as well- attery, sim. memory card. Placed everything on a towel for 48 hours or so, pray a lot, and 2 days later put everything back together. Change up the battery to the max, before you turn it on for the first time, and pray one more time. If you're lucky everything should have dried out nicely, and the phone will work. Do not under any circumstances try to turn on the phone unless it is thoroughly dried out, because water and electricity just don't mix.

Jul 22, 2009 | Sony Ericsson K850i Mobile Phone

2 Answers

Sanyo katano wont charge or turn on.


may be it the battery is low charge or the swetch is broken

Jun 14, 2009 | Sanyo Katana SCP-6600 Cellular Phone

1 Answer

HTC S710 - Battery issue


Hi guys

if u buy new battery for around 35$... its creepy thing that it again sucks within
6 month
so follow these procedure that i really got good response

1)Buy the new battery from any other dealers (u can use Nokia (std) or LG, Micromax, Onida... etc)
having same specifications as 1050mAh Lion-POLYMER 3.7v and having equivalent Size that fit into the case.

2)Now open ur dead battery, remove the sticker slowly, u wil get the polythene bag carrying the charge sheets
.
3)Please note that dont not disturb this polythene bag... (cutting, drilling or pinning), else it starts burning.

4)U will see a circuit above the polyhthene bag having two poles (+ve n -ve) just cut the poles of bag from the circuit and keep the bag aside

5)Now do the same procedure with new batt and remove the polythene bag.. and soilder with
the dead battery circuit. (check the +ve n -ve by multimeter)

5)Re-assemble with insulation tape and recondition it perfectly.
now check poles bofore starting.

Note : i got good result from this and i m getting 18-19hrs standby and 11-15hrs usage. Do it on ur own risk...and i m not responsable for ny harm)

Jun 02, 2009 | HTC S710 Smartphone

1 Answer

Needs to be reset. After 8 hours of recharging it tells mw to get v\closer to the charger


Have you tried disconnecting the battery & then re-connecting it??
I had a problem with my cordless phone-it kept saying 'low battery' on the screen, & when I called customer support they said I needed to reset it. I couldnt figure out how! I took the battery cover off, & disconnected my battery, then re-connected it & the message on my screen was gone & it worked fine!

Apr 28, 2009 | Panasonic KX-TG2314PK 2.4 GHz DSS Cordless...

4 Answers

Invalid Battery


Totally discharging the battery is the way to go. But what you can also do to use your phone in the meantime is this. Plug your charger into the phone withOUT your battery in. It will tell you "Unable to Charge." When it says this, put the battery in. It might tell you "Invalid Battery" a couple more times, but it did eventually say "Charging Battery" for me. After that, simply turn the phone on and it will return to normal. This is when you drain the battery completely. Once I did that, I did not get the invalid battery error again.

May 14, 2008 | Motorola Mobility RAZR V3

1 Answer

Sanyo 7400


The charging circuit has failed; time for a new phone.

I love my BBW MM-7400, had mine for years…

Great phone; never a problem with her.

Mar 26, 2008 | Sanyo MM-7400

2 Answers

Unlocking a Sanyo 7400


try this type the code ##726400# on the home screen it will come up with some options

view
edit
done

click edit and type ur number in
027.......
then
173.......
with the second thing (173.......) do not put 027 in it went ur done that it will tke u back 2 the main menu and click done and it will resstart ur phone u will still have every thing but ur code will be the last 4numbers of ur phne number and that will sovle ur problem hope it helps

Oct 18, 2007 | Sanyo MM-7400

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