Discussion between tlfong01 and David McTravord

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3:52 AM

A quick reply.

Your questions:

Q1 - @tlfong01 I don't know, the local seller didn't specify where they bought it and what kind of brand it belongs. – David McTravord 16 hours ago
Q2 - @tlfong01 and for the module, then how can I charge the battery with? I use TP4056 for charging. And the LM2596, I'll look into it. – David McTravord 16 hours ago

My quick answers:

A1 - Your hardware setup diagram is not very clear. We need to use some reference for discussion. Perhaps we can use the following AliEx ad.

5V 1A 18650 TP4056 Lithium Battery Charger Module/Board With Protection Dual Functions Micro/Type-C USB - TZT 5-Star Store, AliExpress HK$10/(5pcs)
https://www.aliexpress.com/item/1005001581000751.html?spm=a2g0o.productlist.main.43.303a789avA3acr&algo_pvid=9e34a9b1-1938-4e8b-ac82-208f78ef8826&algo_exp_id=9e34a9b1-1938-4e8b-ac82-208f78ef8826-21&pdp_ext_f=%7B%22sku_id%22%3A%2212000016672785875%22%7D&pdp_npi=2%40dis%21HKD%2111.33%219.84%21%21%21%21%21%4021227e5116695184036434414d0731%2112000016672785875%21sea&curPageLogUid=NLjb1Vvas9YI

tlfong01

4:30 AM

AliEx TZT Lipo charger has two versions: with or without protection IC (HW01).

Now references for HW01:

(1) i.stack.imgur.com/SqNtn.jpg

(2) DW01 One Cell Lithium-ion/Polymer Battery Protection IC Datasheet - PingJing Semi
https://datasheet.lcsc.com/lcsc/2007091535_PJSEMI-DW01_C686633.pdf

tlfong01

5:07 AM

Now I assume your TP4056 modules has HW01 built in. Pls let me know otherwise.

2 hours later…

tlfong01

6:58 AM

Now HW01 is control the dual N-channel power mosfet for charge/discharge current limiting. So we need to study the mosfet datasheet.

FS8205A Dual N-Channel Enhancement Mode Power MOSFET FortuneSemi
https://www.ic-fortune.com/upload/Download/FS8205A-DS-12_EN.pdf

tlfong01

7:14 AM

If the OP's TP4056 has no built in HW01 current protection cct, then I would recommend thi one from AliExpress:

1S 3.7V 4A li-ion BMS PCM 18650 Battery Protection Board PCB for 18650 lithium Battery Double MOS - $2.3
https://www.aliexpress.com/w/wholesale-bms-1s-2a.html

tlfong01

7:31 AM

TZT's TP4056 module recommends weak MT3608 boost converter and not the heavy duty XL6009. To play safe, I would start with MT3608 and perhaps LM2596 step down converter later.

7 hours later…

tlfong01

2:34 PM

I am drafting a block diagram for the single 3.7V Lipo battery charger.