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Cellular Phone Forum / Providers / Cingular / September 2005FAQ: Why is charging of Motorola phones so slow on the travel charger?
Q: Why is charging of Motorola phones so slow on the travel charger? A: The standard travel charger packaged by Motorola with many current phones puts out insufficient power for fastest possible charging and for continuous use while charging. For example, charger SSW-0509 for the V551 puts out only 375 mA. The V551 detects this as a slow charger, and thus keeps the external display backlight off during charging. Worse, there's not enough current to keep up with use of the phone while charging, so while the phone is use, the battery will still be discharged even with the phone on the charger. With a fast charger the external display backlight is on during charging, and the phone can be used while the battery is charging. Motorola makes fast 1500 mA chargers that are compatible with these phones: * SPN4716* (where * might be "B" or "C"), also known as * NNTN4250 (nominally for Nextel, but also works with non-Nextel phones). These chargers are readily available from dealers and on eBay for under $15 (plus shipping) For what it's worth, Motorola probably saved less than $1 in cost by packaging slow chargers instead of fast chargers with these phones.  SignatureBest regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES: John Navas <http://navasgrp.home.att.net/#Cingular> > Q: Why is charging of Motorola phones so slow on the travel charger? > [quoted text clipped - 20 lines] > For what it's worth, Motorola probably saved less than $1 in cost by > packaging slow chargers instead of fast chargers with these phones. Well, $1 per charger over one million chargers is...you do the math. Accountants and MBAs make their living on these numbers. Q >> For what it's worth, Motorola probably saved less than $1 in cost by >> packaging slow chargers instead of fast chargers with these phones. > >Well, $1 per charger over one million chargers is...you do the math. >Accountants and MBAs make their living on these numbers. Minus the sales lost to disgruntled prospects and customers, which makes it not necessarily a win for Motorola, a factor often overlooked by "bookies" and MBA types without real market experience. My personal opinion is that this kind of thinking is what contributed to Motorola's big decline in cellular. New that the company has been bouncing back it seems to be forgetting how it first got in trouble. SignatureBest regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES: John Navas <http://navasgrp.home.att.net/#Cingular> > [POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE] > [quoted text clipped - 10 lines] > to Motorola's big decline in cellular. New that the company has been > bouncing back it seems to be forgetting how it first got in trouble. Dunno if they are bouncing back. I think their new crop of snazzy phones are so fragile that they won't live to see the end of a two-year contract. Great features, great reception, very poor electronic reliability. IMO, FWIW. Q >> Minus the sales lost to disgruntled prospects and customers, which >> makes it not necessarily a win for Motorola, a factor often [quoted text clipped - 7 lines] >contract. Great features, great reception, very poor electronic >reliability. IMO, FWIW. I'm personally very impressed with the solidness of such Motorola phones as the V551, V650, and V3. SignatureBest regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES: John Navas <http://navasgrp.home.att.net/#Cingular> In alt.cellular.cingular John Navas <spamfilter0@navasgroup.com> wrote: > For example, charger SSW-0509 for the V551 puts out only 375 mA. The > V551 detects this as a slow charger, and thus keeps the external display My v60 and V551 came with SPN5037A-model SSW-0509, and SPN5037B-model 5012, I don't know which was which. They are both 375mA, and the backlight of the V551 goes out during charging. > backlight off during charging. Worse, there's not enough current to keep > up with use of the phone while charging, so while the phone is use, the > battery will still be discharged even with the phone on the charger. After depleting my battery using the v551 Bluetooth GPRS-tethered to the internet, I plugged in one of the chargers, and continued using Bluetooth for another hour or two. I recall that the phone did increase charge level during that time. Trying to search the difference between the 5037A and 5037B, I found http://www.aftermarketcellular.com/ic/SPN5037.html $12.95 Which lists the v60 and the V551. "This Motorola CE series cell phone compatible 110 Volt AC travel battery charger can operate your cell phone when attached to a discharged cell phone battery. " http://www.aftermarketcellular.com/ic/SPN5037B.html $11.95 Which lists the v60 but not the V551. "This Motorola [...] cellular phone compatible 110 Volt AC travel battery charger cannot operate your cell-phone when attached to a discharged cell-phone battery. " Could it be that some of the early v551 battery life complaints had to do with the poor charger? I don't shut my phone off when I plug it in to the charger. It is charged up the next morning. As it happens, my v551 is moderately discharged right now. With the flip open, plugging in the 5037B indicates "unable to charge" three times in three tries. The 5037A shows "charging" three out of three. The 5037B fails again, three out of three... but I use it to charge this phone often. With the flip closed, the 5037B goes to "charging" three out of three. The additional load of the LCD? A 5037A is newer than a 5037B? Signature--- Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8,-122.5 My complaint with the Moto chargers is with the connection. I had a Mpx 220 ( and their Bluetooth headset) and the chargers never really make a solid connection. Also, when I plugged the phone into the USB connection (To charge & active sync), the computer was always beeping as the computer made a connection, and then lost the connection with the phone. (On and Off all the time as the connection is always loose). I now have an Audiovox, and the connection type is a much more solid connection. SignatureDana > Q: Why is charging of Motorola phones so slow on the travel charger? > [quoted text clipped - 27 lines] > packaging > slow chargers instead of fast chargers with these phones. >My complaint with the Moto chargers is with the connection. I had a Mpx 220 >( and their Bluetooth headset) and the chargers never really make a solid >connection. FWIW, I've never seen that problem. SignatureBest regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES: John Navas <http://navasgrp.home.att.net/#Cingular> >[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE] > [quoted text clipped - 3 lines] > >FWIW, I've never seen that problem. People have been complaining about "unable to charge" and other symptoms related to poor contact between charger and phone since the days of the V60. What is amazing is that the bottom of the line Motorola phones use a simple coaxial DC power jack which provides a much more secure connection. Perhaps this will also go away if the world moves to an integrated mini-USB jack which provides both data connectivity and DC imput for charging as the Razr and successors do. In alt.cellular.cingular Mike S. <retsuhcs@xinap.moc> wrote: > People have been complaining about "unable to charge" and other symptoms > related to poor contact between charger and phone since the days of the > V60. Or is that actually an underpowered charger that has now been corrected? > What is amazing is that the bottom of the line Motorola phones use a > simple coaxial DC power jack which provides a much more secure connection. I was surprised to see that the v220 and v551 had different DC and USB connections. The v220 uses a standard USB cable where the V551 has that odd Motorola-exclusive poor connector. Signature--- Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8,-122.5 >In alt.cellular.cingular Mike S. <retsuhcs@xinap.moc> wrote: >> People have been complaining about "unable to charge" and other symptoms >> related to poor contact between charger and phone since the days of the >> V60. > >Or is that actually an underpowered charger that has now been corrected? No, since cleaning the contacts on the phone often fixes it. >>In alt.cellular.cingular Mike S. <retsuhcs@xinap.moc> wrote: >>> People have been complaining about "unable to charge" and other symptoms [quoted text clipped - 4 lines] > >No, since cleaning the contacts on the phone often fixes it. They didn't get dirty by themselves. How is abusing the phone the fault of Motorola? SignatureBest regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES: John Navas <http://navasgrp.home.att.net/#Cingular> >[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE] > [quoted text clipped - 9 lines] >They didn't get dirty by themselves. How is abusing the phone the fault of >Motorola? It isn't. But designing a connector which places uncovered electrical contacts facing outwards, where they can get dirty or contaminated with routine use, is their fault. >>>No, since cleaning the contacts on the phone often fixes it. >> [quoted text clipped - 4 lines] >contacts facing outwards, where they can get dirty or contaminated with >routine use, is their fault. I don't see that in the connector design. SignatureBest regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES: John Navas <http://navasgrp.home.att.net/#Cingular> >In alt.cellular.cingular Mike S. <retsuhcs@xinap.moc> wrote: >> People have been complaining about "unable to charge" and other symptoms >> related to poor contact between charger and phone since the days of the >> V60. > >Or is that actually an underpowered charger That's my guess in many of the cases -- you've got the phone on the charger, but the battery still goes flat, which makes it look like the charger isn't working. >that has now been corrected? Hardly -- Motorola is still bundling wimpy chargers. >> What is amazing is that the bottom of the line Motorola phones use a >> simple coaxial DC power jack which provides a much more secure connection. > >I was surprised to see that the v220 and v551 had different DC and USB >connections. The v220 uses a standard USB cable where the V551 has that >odd Motorola-exclusive poor connector. That odd connector is actually a good design that enables high-end features like drop-in car adapters. SignatureBest regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES: John Navas <http://navasgrp.home.att.net/#Cingular> In alt.cellular.cingular John Navas <spamfilter0@navasgroup.com> wrote: >>Or is that actually an underpowered charger that has now been corrected? > Hardly -- Motorola is still bundling wimpy chargers. Although they are both rated at 375mA, it seems that the old one and new one that I have are actually different in practice. I have found separate listings at the same web site offering the "v60" and "v60 + v551" chargers at different prices, the old one with an admonition about not being able to use the phone while charging a dead battery. I haven't seen good specs for the chargers on a Motorola web site. Signature--- Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8,-122.5 > In alt.cellular.cingular John Navas <spamfilter0@navasgroup.com> wrote: > [quoted text clipped - 10 lines] > > I haven't seen good specs for the chargers on a Motorola web site. This thread had me thinking about a trip to Florida I'm planning next month. I'd sure like to take my MPX because it's more compact than the Treo. I dragged out all my Moto chargers and it is definately an issue with the contacts. If I hold downward tension on the plug, it makes contact. The second I let go, it disconnects. And it isn't because the phone was abused. I treat my phones with kid gloves and the same exact thing happens with the desktop charging cradle and the car charger. No contact unless I hold the plug at a downward angle. Since I wont have access to a computer for USB charging, the Motorola stays home. >> In alt.cellular.cingular John Navas <spamfilter0@navasgroup.com> wrote: >> [quoted text clipped - 20 lines] >plug at a downward angle. Since I wont have access to a computer for USB >charging, the Motorola stays home. Another basic design flaw of the Motorola plug/socket assembly. The contacts are made by plugging three tiny spring-loaded fingers into the bottom of the phone. The plug is held in place by two tiny metal catches that do not provide positive locking in place. Compare this, for instance, to a USB plug which assures tight, reliable contact for thousands of cycles. How many complaints have you read from computer owners whose USB mouse fails to function because the plug/socket assembly is loose or dirty? >Another basic design flaw of the Motorola plug/socket assembly. The >contacts are made by plugging three tiny spring-loaded fingers into the >bottom of the phone. The plug is held in place by two tiny metal catches >that do not provide positive locking in place. The plug in my Motorola charger has positive locking to hold it in place. >Compare this, for instance, to a USB plug which assures tight, reliable >contact for thousands of cycles. How many complaints have you read from >computer owners whose USB mouse fails to function because the plug/socket >assembly is loose or dirty? Not really comparable: large difference in both physical size and functionality. SignatureBest regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES: John Navas <http://navasgrp.home.att.net/#Cingular> > Q: Why is charging of Motorola phones so slow on the travel charger? > [quoted text clipped - 27 lines] > packaging > slow chargers instead of fast chargers with these phones. I have a half dozen Moto chargers form various purchases over the last several years. Not one of them makes a stable connection to charge a phone. They are absolutely worthless and have been one of the biggest reasons I've stopped being so loyal to Motorola. I still have an MPX220, but the only way to charge it is with the USB connection to my desktop. Since I don't leave it running all night, which is typically when I re-charge my phone, it is a real inconvenience. More often than not, I leave the MPX home and carry my Treo. I hope Motorola starts to get it, but I'm not very hopeful. Why not use a portable charger with the mini-USB connector? You can get them on ebay for under $10 or OEM ones for about $15. I have several for my v3. The new lightweight ones weigh virtually nothing and have a faster charge rate too. From:Ric no@way.com >> Q: Why is charging of Motorola phones so slow on the travel charger? >> [quoted text clipped - 37 lines] > often than not, I leave the MPX home and carry my Treo. I hope > Motorola starts to get it, but I'm not very hopeful. UPDATE: The NNTN4250 fast charger, which I picked up on eBay for only $7 (plus $5 shipping) and just received, is a vast improvement over the standard charger included with the V551: * Charging is much faster * Charges even while phone is in use Highly recommended to anyone with a compatible Motorola phone and the wimpy standard charger. >Q: Why is charging of Motorola phones so slow on the travel charger? > [quoted text clipped - 18 lines] >For what it's worth, Motorola probably saved less than $1 in cost by packaging >slow chargers instead of fast chargers with these phones. SignatureBest regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES: John Navas <http://navasgrp.home.att.net/#Cingular> |
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