I modified my Baofeng BF-888S with a chinese Li-ion Micro USB charging board from Ebay. This way i can charge my 888 just as easy as a mobile phone or use with a powerbank.
Thank you for this great idea. I left the 1.22 k resistor in place. The charge current was 0.8 Ampere, which the battery should be able to handle fine. Also, I used epoxy to make a backstop for the PCB so it would not slide back over time when the charge cord is plugged in.
Wau man, I remember, when we talked about this a while back. And as I see, we bought same unprotected boards, both. Just yesterday I made my second battery, and this time with protected board. But I have to tell, that light "pipe" you made is awesome. I just turn the board and made two holes on back, and separate LEDs by using Sugru. I will put photos on my GooglePlus page, check 'em out, if you want..
Yes, that one. It was made for my friend, he wants to use it both in car and home, but do not want to rework battery as I did. I tought it is too light for car use, so only thing came under my hand was set of old keys. Since then I use 'em as weight also for my soldering iron stand..
Dont even talk about that car.. It is for sale. It is beautiful piece, but I have big trouble with that 2.5TDS VM engine. I invest so much money and effort to that engine, and it still doesnt run good. I have enough. Hopefully somebody with passion in cars will buy it and make run again.
Haha the car is ok But those VM engines are known for troubles. In the Netherlands they all came with the 2.2DTi engine. They are ok. I hope someone will buy it from you!
Se vai direttamente con il + e - della micro usb sul caricatore originale, mantieni tutte e due le possibilità di ricarica. Io l'ho fatto, il risultato è poterla usare anche con l'alimentazione 220 - 12. -5 volts
We are now 8 years later. Radio is used in a workshop. Cold at winter hot in the summer and wet when raining....the Radio and battery still no corrosion and just working fine. Battery has lost some capacity over the years and the Radio itself has a noisy scratchy volume knop potentiometer. So the damp story is a bit BS. The original battery isn't sealed very wel neither.
What corrosion? I had a roughly similar tp4056 usb charging mod on my 888s and it's going for 6 years now and guess what, no corrosion. You're outvoted! 2 to 1! This kind of mod is no big deal unless the humidity is 100% all day or you're swim a lot with it.
+Sir CyFus I Didn't check the output. The datasheet of the charge controller IC contains a list of resistor values for the PROG pin on the IC with their current settings.
Ha! Dat is niet zo moeilijk. Ze zitten gewoon in elkaar geklikt met een beetje lijm ertussen. Dus met een dun schroevedraaiertje of een mesje kom je een heel eind. Ik heb het gedaan met zo'n metalen spreider/spudger/prytool. 73s! *That's not that difficult, The battery is just snapped together with a tiny amount of glue between. So with a small screwdriver or knife you its easy to open. I did it with a metal spudger/prytool. 73s!*
Is it practicle to have one charge controller feeding the one on the battery? Wouldnt you just need to pass throuogh the usb power to the back of the leads that have already been provided?
If i want connect the +ve and -ve wire to this charging board,did i need to change any connection at the battery or just connect it to the board?sorry i not very familliar with circuit or thing like this
my second one (not sure, if it was from 777 or 888 model) was even smaller (yeah, thicker but shorter, so I use battery itself like board support when pluging USB plug in)
in fact, board you use is not overcharge/over discharge protected. It is just, as you wrote, charging controller chip. But there is new board style available with both protections.
You got two things mixed up. The Charge controller chip (TP4056) regulaytes the charging proces. So the starting end stopping of the charge when the right voltage is reached, The protection IC's are just short circuit and overload protection IC's and a very crued charge cutoff. They are important BUT!! the Baofeng battery's already have them inside the battery. You can see it when you peel away the capton tape. There is a little PCB with exactly the IC's that are on the charge board you have. When ordering Lithium cells you can choose them order them with or without protection. Baofeng did the right thing and ordered them with protection,
:facepalm: You got me. I do not know, what I was thinking last night... And yet, no alcohol was involved.. :) You are absolutely right. Sorry for confusions, youtubers..
@@MontajciKopek the UV82 has a 7,2V dual cell battery. So you can t charge it with this one cell charging board. You need a BMS for balanced charging the 2 cells
oplader naar de batterij toe 22V DC en hij werd warm voor je het weet brand je huis af wat een gevaarlijk oplader dus nu alles op5v perfect BEDANKT VOOR JE TIP SUPER
Thank you for this great idea. I left the 1.22 k resistor in place. The charge current was 0.8 Ampere, which the battery should be able to handle fine. Also, I used epoxy to make a backstop for the PCB so it would not slide back over time when the charge cord is plugged in.
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Very helpful, thank you. My charger broke (some component melted) so I replaced the circuit as you did. Easy peasy
Great! Nice the video was helpfull to you.
Nice mod to the battery...now it can be charge from a power bank...
thank you !
👏👏👏👏👏
dude that is brilliant!!!
Wau man, I remember, when we talked about this a while back. And as I see, we bought same unprotected boards, both. Just yesterday I made my second battery, and this time with protected board. But I have to tell, that light "pipe" you made is awesome. I just turn the board and made two holes on back, and separate LEDs by using Sugru. I will put photos on my GooglePlus page, check 'em out, if you want..
Yes haha! Nice how we can help each other with new ideas. I saw some of your pictures. I like the key's you glued in to weight it down ;)
Yes, that one. It was made for my friend, he wants to use it both in car and home, but do not want to rework battery as I did. I tought it is too light for car use, so only thing came under my hand was set of old keys. Since then I use 'em as weight also for my soldering iron stand..
Nice! You also have a nice Car, The Opel Frontera. I drove and maintained them a lot at work
Dont even talk about that car.. It is for sale. It is beautiful piece, but I have big trouble with that 2.5TDS VM engine. I invest so much money and effort to that engine, and it still doesnt run good. I have enough. Hopefully somebody with passion in cars will buy it and make run again.
Haha the car is ok But those VM engines are known for troubles. In the Netherlands they all came with the 2.2DTi engine. They are ok. I hope someone will buy it from you!
Se vai direttamente con il + e - della micro usb sul caricatore originale, mantieni tutte e due le possibilità di ricarica. Io l'ho fatto, il risultato è poterla usare anche con l'alimentazione 220 - 12. -5 volts
Hi.I wish to see some trouble showing and using an oscilloscope for repair.
My Baofeng 888s battery is 2800mAh instead of 1500mAh, can i still do this mod???
As long as it is a single cell 3,7V battery
That's going to let a lot of damp into the battery with all the resulting corrosion.
We are now 8 years later. Radio is used in a workshop. Cold at winter hot in the summer and wet when raining....the Radio and battery still no corrosion and just working fine. Battery has lost some capacity over the years and the Radio itself has a noisy scratchy volume knop potentiometer. So the damp story is a bit BS. The original battery isn't sealed very wel neither.
What corrosion? I had a roughly similar tp4056 usb charging mod on my 888s and it's going for 6 years now and guess what, no corrosion. You're outvoted! 2 to 1! This kind of mod is no big deal unless the humidity is 100% all day or you're swim a lot with it.
Good Job. Did you check the value of the input side of the battery board though? I'm wondering if its really 500ma or more.
+Sir CyFus I Didn't check the output. The datasheet of the charge controller IC contains a list of resistor values for the PROG pin on the IC with their current settings.
+laagvliegerv6 I measured the current from the charger board to a half dead battery. Its 800ma
+Sir CyFus Which resistor do you have on the PROG pin?
The one rated for 1000ma, I need to do more testing and change the values to confirm
compra un atril para el celular por favor . Gracias por la idea . Saludos
which charging board did you use I see some TP4056 boards is this the right one?
yes it is!
just a question doesnt it produce heat? like right next to the battery?? is that a good idea?
Its not producing any heat. When you touch the chip you feel it is slightly warmer then ambient. No problem.
Thanks fot the Tutorial!
Now where is the Tutorial "how to open the batterij case" :)
Best Regards and 73's!
Ha! Dat is niet zo moeilijk. Ze zitten gewoon in elkaar geklikt met een beetje lijm ertussen. Dus met een dun schroevedraaiertje of een mesje kom je een heel eind. Ik heb het gedaan met zo'n metalen spreider/spudger/prytool. 73s!
*That's not that difficult, The battery is just snapped together with a tiny amount of glue between. So with a small screwdriver or knife you its easy to open. I did it with a metal spudger/prytool. 73s!*
Het is gelukt. Ik heb de connector aan de zijkant gedaan zodat de porto gewoon rechtop kan blijven staan tijdens het laden...
Goed bezig!
Take off the little white sticker, unscrew and then it clicks apart if you lever it
Baofong harjing cradalburn out how can i repair ?
Is it practicle to have one charge controller feeding the one on the battery? Wouldnt you just need to pass throuogh the usb power to the back of the leads that have already been provided?
There is no charge controller in the batteries. Just the cell protection pcb.
@@laagvliegerv6 you sure it’s not a 1s bms?
@@wheelbarrow2803 im sure. It is not a BMS. Just simple under and over voltage protection..
Will it be possible to use it in 12v of the cigarette case of the cars?
If i want connect the +ve and -ve wire to this charging board,did i need to change any connection at the battery or just connect it to the board?sorry i not very familliar with circuit or thing like this
Ik ga het ook proberen. ik heb net een printje besteld via eBay.
Succes!
Tôi đã làm thành công Xin cảm ơn bạn
Is this the original battery or did you change it to a smaller one, so you could fit the pcb inside?
This is the original battery! There is plenty of room inside the case.
my second one (not sure, if it was from 777 or 888 model) was even smaller (yeah, thicker but shorter, so I use battery itself like board support when pluging USB plug in)
Hello.
Does it have also some overcharging protection, so it will not damage the battery?
Nice work otherwise
+TheOklep Yes it does. It has a Li-ion charge controller chip on the PCB. It's the TP4056 IC which controls the charging proces.
in fact, board you use is not overcharge/over discharge protected. It is just, as you wrote, charging controller chip. But there is new board style available with both protections.
You got two things mixed up. The Charge controller chip (TP4056) regulaytes the charging proces. So the starting end stopping of the charge when the right voltage is reached, The protection IC's are just short circuit and overload protection IC's and a very crued charge cutoff. They are important BUT!! the Baofeng battery's already have them inside the battery. You can see it when you peel away the capton tape. There is a little PCB with exactly the IC's that are on the charge board you have. When ordering Lithium cells you can choose them order them with or without protection. Baofeng did the right thing and ordered them with protection,
:facepalm: You got me. I do not know, what I was thinking last night... And yet, no alcohol was involved.. :) You are absolutely right. Sorry for confusions, youtubers..
how i make this on baofeng uv5r and uv82?(after 8 years)
@@MontajciKopek the UV82 has a 7,2V dual cell battery. So you can t charge it with this one cell charging board. You need a BMS for balanced charging the 2 cells
@@laagvliegerv6 but, Isn't there a circuit similar to it in it?
charging gaat 220v in er kom uit 22v dat is niet goed voor de cell 3,7V battery nu ook maar usb er op en powerbank super
Waar komt 22 volt uit?
oplader naar de batterij toe 22V DC
en hij werd warm
voor je het weet brand je huis af
wat een gevaarlijk oplader
dus nu alles op5v perfect
BEDANKT VOOR JE TIP SUPER
Ah de originele lader. Ja dat is echt troep.
Why bother with all this when you can just plug the radio into the USB socket of a phone charger? 😀
Mike C what do you mean? this mod is to charge them with a phone Charger. From Factory you can't.
laagvliegerv6 I charge them with my phone charger, just by plugging the cable from the radio to the USB socket on my charger plug!
Mike C you mean the programming cable? The one that plugs into the speakermike jacks?
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