Useful phones these-you can take out the battery pack and stick in standard alkaline AA cells in an emergency -although the back does not quite fit.
The best solution though if you cannot find a new battery pack is to take the battery apart, snip out the old cells and stick in standard AAA nimh rechargeable batteries,you will need to fit some battery springs on the non contact end (top)so that they fit tightly, and a bit of solder the other end so that they make good contact...result a long lasting rechargeable phone.
Walt, 19 Apr 2015Amazon UK sell this battery. The charger adapter is more of a problem - I can't find the spec... moreHi ! just dug ours from box: plug is 'yellow tip', approx 2.4mm OD shaft, tip positive.
Can't measure ID, but very small.
*May* be 0.7mm, which is naughty of Motorola as that size is only supposed to be used for ~ 3V.
Charger delivers seven (7) volts, 300 mA 2.1 VA
Model FE 4116 do show up on ebay etc...
yoshibonnie2, 06 Sep 2014Like previous query. I too have had my Motorola M3788E (note the E on the end) for a similar... moreAmazon UK sell this battery. The charger adapter is more of a problem - I can't find the specification for one
i just got my first one off ebay ive wanted one for years now i got one for $50 mines blue love it
Vijay Gupta, 17 Mar 2013Please quote a price for this M3788 urgentlyIt is a class phone but where can I purchace another one
Like previous query. I too have had my Motorola M3788E
(note the E on the end) for a similar period of time. I have managed to obtain a new battery some years ago but now I required a further battery replacement. Unfortunately I am having difficulty in acquiring one. Any suggestions how I get a replacement. I only use it to make and receive calls. Don't want a new one. This suits me fine. I would really appreciate anyones sensible help. Cheers. Bill.
I've had my 3788 now for 10 years. I like its simplicity and reliability. I don't want to take pictures or access the internet etc, so the 3788 suits me very well. But I did find the small reduction in battery voltage from 5.4 volts to 5.00 volts to be too small. The phone cuts out at 5.00 volts. I arranged to run my one from 5 external nicads, 6.75 volts at max and it runs well, since now I can let the battery fall all the way from 6.75 volts to 5.00 volts before it cuts out.
Trevor Purnell, 19 Jan 2013Nice phone but have been unable to purchase the 'BACK' which allows use of standard AA Batteri... moreYou would have to replace the diode which the phone battery has inside and solder it inside the case in the right place, the right way round, or the phone wouldn't work.
carole, 19 Jan 2013It just died. After a long battery problem. No other will be like it.You could find it in yo... moreMy 3788 tolerates battery voltages between 6.75 and 5.00 volts. But an aging battery quickly drops to 5.0 volts so I replaced my one with 5 D cells outside the case. I removed the diode from the old battery and soldered it back inside the phone. Result...superb! The battery runs and runs the phone without recharge for weeks.
I removed the battery and soldered its diode into the phone case , then added a socket so I could connect the phone to 5 external D size Nicads. The capacity of these id 5,000 mAHrs so they last a long time when running. The phone seems to tolerate any voltage from 6.75V, to 5.00V which is where it cuts out. The original battery, as supplied, quickly falls to 5.0V as it ages, so my modification allows a voltage fall of up to 1.75V and this is a big improvement on the original battery's figures. The D cells are bulky so I carry them in my shopping bag. Being made of Nickle on the outside, they solder OK to take the necessary wires.
Anonymous, 12 May 2012do you know the 8 digit code number for motorola m3788?The 8 digit unlock number is set on the IMEI ( type *#06# for the IMEI NUMBER ) and is held by Motorola data banks so to get this number costs from £4 to £10 give your IMEI number to a site that unlocks your m3788 PAY THE MONEY THEN YOU WILL GET YOUR SPECIAL CODE ( unlock code )
Anonymous, 10 Nov 2011do you know the 8 digit code number for motorola m3788?I think the digit code is factory set to 00000000
The 4 digit unlock code is factory set to 1234
I saw 1 today!, 22 Jul 2011I work in a phone shop and i had a customer come in with one of these today!!! it was awesomeThat was my first phone, and it was awesome. I also wrk in a phone shop and agree that it would be pretty cool to see someone walk in with one of these.
Mazhar Elahi, 02 May 2011My motorola Orange m3788e locked how can I unlock that, is there any code if yes please help me.do you know the 8 digit code number for motorola m3788?
I work in a phone shop and i had a customer come in with one of these today!!! it was awesome