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UV-5R: Charge and Use at Same Time?
开云体育I’m the Radii Tech for Clackamas County, Oregon and every radio manufacturer says the same thing! And here’s why:The chargers are, by design, made to trickle charge the the batteries. This keeps the batteries from overheating when charging, thus prolonging their life span.? The chargers are designed to only produce a small current level to do this and thus stop charging if this level is exceeded.? I keep telling our folks in the court house, and every other County agency with portable radios, who use their radios to communicate emergency situations, should they arise, between the Sheriff personnel and all the Courthouse personnel.? They tell me that they won’t remember to turn OFF the radio when on the charger or to remove the radio from the charger when the radio is ON! I tell them that they “CAN” leave it in to listen to the radio, BUT the radio will NOT work if they NEED to use it because it does NOT charge while it‘s in the charger! It’s a “LIFE SAFETY” issue; ?“ YOUR CHOICE”!! But they still do it! So to directly answer your question: ?YES, the manual is correct! ?Do NOT try to operate your radio while is connected to a charger! ?It won’t charge the radio AND it could damage your charging device as well! HOWEVER, ?they do make a “Battery Eliminator” which allows you to use your portable radio in a mobile configuration and they work great! 73’蝉! Rod KC7CJO? On Oct 10, 2021, at 04:43, David AD4TJ via groups.io <ad4tj@...> wrote:
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They might be referring to transmitting which would take more current than the battery charger could supply.
I have a Baofeng DM1801 and a Anytone 878 and I leave them on the charger while listening no problem. In both cases they do reach full charge just might take a little longer.?? It will charger faster with the radio off. Ken |
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Thanks for the clarification. I just ordered the Baofeng BL-5 Battery Eliminator from Amazon Smile, so I can safely use my HT on automobile power. David
On Sunday, October 10, 2021, 10:11:17 AM EDT, Rodney kraft via groups.io <kc7cjo@...> wrote:
I’m the Radii Tech for Clackamas County, Oregon and every radio manufacturer says the same thing! And here’s why: The chargers are, by design, made to trickle charge the the batteries. This keeps the batteries from overheating when charging, thus prolonging their life span.? The chargers are designed to only produce a small current level to do this and thus stop charging if this level is exceeded.? I keep telling our folks in the court house, and every other County agency with portable radios, who use their radios to communicate emergency situations, should they arise, between the Sheriff personnel and all the Courthouse personnel.? They tell me that they won’t remember to turn OFF the radio when on the charger or to remove the radio from the charger when the radio is ON! I tell them that they “CAN” leave it in to listen to the radio, BUT the radio will NOT work if they NEED to use it because it does NOT charge while it‘s in the charger! It’s a “LIFE SAFETY” issue; ?“ YOUR CHOICE”!! But they still do it! So to directly answer your question: ?YES, the manual is correct! ?Do NOT try to operate your radio while is connected to a charger! ?It won’t charge the radio AND it could damage your charging device as well! HOWEVER, ?they do make a “Battery Eliminator” which allows you to use your portable radio in a mobile configuration and they work great! 73’蝉! Rod KC7CJO? On Oct 10, 2021, at 04:43, David AD4TJ via groups.io <ad4tj@...> wrote:
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开云体育The other piece of this puzzle is that LiION batteries require a very specific charging cycle. ?Trickle charging after they are full may result in metallic Lithium, which becomes an explosion hazard. ?If you run the radio while it is charging, the charging circuit is unable to observe the condition of just the battery. ?Essentially the radio drain makes the battery look under charged, which will cause the charger to overcharge the battery, risking the hazard listed above.A Lion charger will start charging at a defined current, then when the battery voltage reaches a certain level, it will charge in pulse cycles, adding charge, then observing the voltage. ?When the voltage reaches the correct level, it stops charging altogether. As pointed out by others, using the battery while charging it can be a life safety issue, due to a hazardous battery condition, if not due to inadequate charge. Bill Sent from my shoe phone’s big brother. ?Please excuse auto connections caused by typhoons.?? |
开云体育Bill,Thanks for the more detailed explanation. ?I’m used to having to “dumb things down” for the non-radio folks at work. Even then I get the glazed stares, so I quit explaining and just emphasize the fact that their radios most likely won’t work because they aren’t being charged.? Thanks! Rod KC7CJO On Oct 10, 2021, at 14:20, Bill Storey via groups.io <WTStorey@...> wrote:
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> A Lion charger will start charging at a defined current, then when the battery voltage reaches a certain level, it will charge in pulse cycles, adding charge, then observing the voltage. ?When the voltage reaches the correct level, it stops charging altogether.
Bill
Welllll... This may best meet the rule, Read the whole danged manual." But a radio tech for any business or agency ought to go a step further and absolutely confirm charging details. An exception is my phone. It checks battery levels before charging. It can charge at at least 3 voltages and varying currents. With FLA, (flooded lead acid) you can see charging current drop of with an old school charger as the battery fills and "resists" input. When low, my charger offers almost 10v and almost 2A,.if my oh is off or on standby. If I attempt to use my ph, I accomodates me but V drops to 5 & change, and current to ~0.9 then smoothly drops diwn, 0.5> 0.017A etc & to 0.000. Current drops at it nears full. So any absolute charging rule, as technology advances, is a risk. Manual are detail-poor as ~"noone really reads them or cares." I do have a few pics of charging rate graphs I can dig up, soon, I think. I got a cute (useful for anal-nerds,) toy from OReilly's Auto for $10 to montior a ph charger's output. They seem to have quit selling them but are on the 'net for $7-8. Big pretty blue and red LED readouts. Reading the dropping A, you know your ph is filling well or about full. For the same price there's one with smaller text which also tells each ma and accumulates a total. You can see if your battery is still virile or getting tired. (Used sales generally attest to "at least 80% capacity.") I use the simple on in my car w big bright letters and the detailed unit at home. Great gifts! Plug them into your USB charger and your cord into it, thus, no matter if your ph is USBC or iPh, et al. Baofeng is a portable, so I'll mention my phf is? DooGee S96Pro. Protection Grade:?IP68 / IP69K/ MTL-810G, waterproof, dustproof, shockproof, high & low temperature resistance. IOW, heavy w a BIG battery, seriously ruggedized, video 15 ft down, B&W nite vision camera. Good for outdoor types. It's not 100% ideal software but neither is a $500 ph that fails after it's 3rd splashdown. Has a spot for a wrist lanyard, incl. Joke is, to avoid black eyes when reading in bed. I think it's so you don't drop?it so it doesn't exceed 15 ft when swimming in a lake, but it could also be for use as a weapon. $199-350. 2 types, so match your PSP, (carrier.) I use Metro/TMobile, (NON-CDMA.) Was Spanish - became Chinese. Cord chg or wireless. Wireless chgr not incl, but a fast chgr is. Good info on amazon, but price spread is huge. Be neat if OtterBox made a waterproof cover for the Bao's. This ph got a cheap clear cover as one is NOT really needed. Mmm, it seems.my batyery charging rate graphs were in my costly ph. Too bad. Note also, Lithium batyeries are changing, va doping with Fe, for example. Voltage and overcharge forgiveness changes, as can charge and discharge rates... so an old lower V charger may nearly fill a new battery, but visa versa could cause a fire. Just a vague rule of thumb upon which you must not rely. Check, and re-confirm IF & before jury rigging a charger. BillSF9c |
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