Comments on: Portable Bluetooth Radio Battery Problem

By: Yogesh Panchal

Yogesh Panchal — Tue, 07 May 2024 07:11:27 +0000

GIFT ELIJAH
Thanks! for your encouragement.

Likes(0)Dislikes(0)

By: GIFT ELIJAH

GIFT ELIJAH — Tue, 07 May 2024 06:22:37 +0000

Well explained repairs, thanks for the detailed explanation the good result gotten truly shows your not giving up on any problem. Keep the flag of electronic repairs flying,
I can see that Madam is also complimenting in this venture.

Likes(0)Dislikes(0)

By: Yogesh Panchal

Yogesh Panchal — Sun, 05 May 2024 14:34:56 +0000

In reply to Waleed Rishmawi.

Thank you! Waleed,
One more article is in pipeline waiting for "Collarless USB Connector" which is not available in local market. even on-line it doesn't show.

Likes(1)Dislikes(0)

By: Yogesh Panchal

Yogesh Panchal — Sun, 05 May 2024 14:30:25 +0000

In reply to Parasuraman S.

Expert's advice is always welcome.
thank you! Sir

Likes(0)Dislikes(0)

By: Albert van Bemmelen

Albert van Bemmelen — Sun, 05 May 2024 09:09:11 +0000

In reply to Albert van Bemmelen.

Also using a TP5100 instead is 10% apparently more efficient than the TP4056. Both are linear chargers but because a 400mΩ resistor is required for the TP4056's input this causes a 10% decrease in efficiency.
In the TP5100's internal mosfet it is integrated as a 650mΩ "on" resistance.

Likes(3)Dislikes(0)

By: Albert van Bemmelen

Albert van Bemmelen — Sun, 05 May 2024 08:53:22 +0000

In reply to Yogesh Panchal.

Understood Yogesh! The TP4056 charging ic probably gets replaced by more economical 96% charging ic's soon? Like the MP2307 that is a step-down adjustable output voltage ic that doesn't work on dissipating heat like the 4056 because of the at 340KHz switching chip.
They are sold as Mini360 DC-DC Buck Converter Step Down Modules with MP2307 ic. And work from 4.75V-23V input to 1V-17V output voltage at 340KHz. And only measure 17x11x3.8mm in size and are for instance often used in Flight Control Modules.

Likes(3)Dislikes(0)

By: Waleed Rishmawi

Waleed Rishmawi — Sun, 05 May 2024 08:34:09 +0000

Good repair and thanks for sharing. It is very hard to find matching batteries with the original ones. I am still looking for overdrive tiny car’s battery and so far no leaks clean with finding one. Have a blessed day

Likes(0)Dislikes(0)

By: Yogesh Panchal

Yogesh Panchal — Sat, 04 May 2024 16:26:50 +0000

In reply to Albert van Bemmelen.

Albert,
In this battery middle Pad is for BSI (Battery Status Indicator)used in device where charging Process is monitored. Mobile phone has a BSI resistor for identifying the battery pack placed in the phone.The BSI fixed resistor value indicates the capacity and chemistry of battery. It also tells the phone processor about the temperature and charging voltage and current passing to the mobile phone. The BSI resistor connected to ground and the phone measures the resistance between the BSI and Ground and tells the processor about the type of battery inserted into the phone.
in this Radio Player TP4056 Charging IC is Used, which does not required extra BSI Option.

Likes(4)Dislikes(0)

By: Parasuraman S

Parasuraman S — Sat, 04 May 2024 14:22:20 +0000

A wife is a wife, no matter who they are. Good that you were able to meet the demands! Many thanks for sharing this interesting story.

Likes(1)Dislikes(0)

By: Albert van Bemmelen

Albert van Bemmelen — Sat, 04 May 2024 13:06:14 +0000

Although the battery fits I still wonder how you safely connect a BL-5C 3.7V pack that has 3 connector pads safely by only using two wires?
Because in a Nokia or other phone it always is also connected to a 3 pin charger connector. One of those probably checks the Li-ion temperature?

Likes(5)Dislikes(0)