Avatar

DIY BATTERY CHARGER, PROTECTION AND BOOST

Mar 20th, 2020 | by: ELECTRONOOBS
Category: Electronics Basic Circuits
Views 1940
Usually, each time I have a project with a small battery that I also want to charge, I use a small charging module with USB connector. But then, all the other digital components usually work at 5V, but the battery is 3.7V. So, for that I add another small module, a boost converter to give me 5V. Usually we also need a battery protection so it won't overcharge, discharge or have a short circuit. What I've done was to add all these ICs on the same PCB so now we can charge a 3.7V LiPo or Li-Ion battery, protect it and then have a 5V or 12V boosted output. Let's see how I've made it.

PHOTO GALLERY

Below you have the scheamtic for version V1.0. Remember this version works ok but have in mind: The coil is small so it will have a maximum current output of 600mA. To switch from 5V to 12V or viceversa, you first must disconnect the battery from the input, otherwise the boost converter IC will fail. So, first select output voltage adn then connect the battery.
You have the values of each resistor, capacitor, inductor on the schematic. Use the same values in order to get the same output. Remember that Rprog will set the charging current for the battery.

19 Comments

  • Sven

    about 4 years ago

    Hi are the suggested improvements eg parallel resistor for the switch and or the FS312 IC mentioned in the comments of the video implemented in the second version You list an under voltage protection of 26V DW01 24V in the feature list of V2 shop The FS312F ICs UVP seems be at 29V Also I would love to see an update with the improvements in action Last thing the link to V2 in the shop is missing in your Youtube description

    ELECTRONOOBS

    about 4 years ago

    Thanks for tip!

    Noob 19129

    about 9 months ago

    Please try Google before asking about High Rated Product Blog 94c5f79

    Noob 19129

    about 6 months ago

    Please try [url=https://www.google.com/]Google[/url] before asking about [url=https://paratus.hr/forum/thread-9693-post-232896.html#pid232896]Useful Product Info[/url] b59a705

    Noob 19129

    about 6 months ago

    Please try [url=https://www.google.com/]Google[/url] before asking about [url=https://forum.lundin.ro/showthread.php?tid=67&pid=1637#pid1637]Awesome Product Website[/url] 9f6c4aa

    Noob 19129

    about 6 months ago

    Please try [url=https://www.google.com/]Google[/url] before asking about [url=http://opel.discutbb.com/sujet-248705-193036-230-3--probleme-ouverture-porte.html#endtopic]Recommended Product Info[/url] e0b59a7

    Noob 19129

    about 5 months ago

    Please try [url=https://www.google.com/]Google[/url] before asking about [url=http://choxaydung.vn/forum/viewtopic.php?f=44&t=21036&p=127644#p127644]Recommended Product Blog[/url] a023d94

    Noob 19129

    about 4 months ago

    Please try [url=https://www.google.com/]Google[/url] before asking about [url=https://blooddrops.de/showthread.php?tid=28&pid=288109#pid288109]Top Product Guide[/url] 5f79e0b

    Noob 19129

    about 3 months ago

    Please try [url=https://www.google.com/]Google[/url] before asking about [url=https://bossgirlpower.com/forums/viewtopic.php?pid=533054#p533054]New Product Tips[/url] aa023d9

    Noob 19129

    about 2 months ago

    Please try [url=https://www.google.com/]Google[/url] before asking about [url=https://pkclan.net/viewtopic.php?p=99322#p99322]Useful Product Website[/url] f6c4aa0

    Noob 19129

    about 2 months ago

    For the person inquiring about car crash law firm augusta, expert semi truck accident law firm assistance mcalpinskountrykitchen, 40-6-16 georgia fine, footage invan surveillance cameras is leaking, truck accident lawyer macon, accident attorney macon, rules for truck drivers, augusta car wreck lawyers, defective drug recalls attorney atlanta, accident on i16 today, I highly recommend this [url=https://thomas0z23wkq2.tdlwiki.com/user]cool liability attorney advice[/url] or lawyers macon ga, bad accident on i-75 today macon ga, medical devices columbus lawyer, atlanta ga personal injury lawyers, michael thompson attorney, law firm georgia, defective product lawsuit cases, slip and fall law firm near me, defective product lawyer near me, macon lyft accident lawyer, not to mention this [url=https://joshua2y79jvi4.onzeblog.com/profile]read this post here about liability attorney details[/url] as well as 40-6-16 georgia fine, macon truck accident lawyer, muerte injusta abogado savannah, georgia wrongful death lawyer, lawyers in macon ga, defective products law, black box vehicle, lane splitting legal in georgia, defective medical devices attorney macon, car wreck attorney macon, alongside all this [url=https://bookmarkspring.com/story11835177/georgia-s-move-over-law-requires-drivers-to-and-weird-law-in-georgia]sell about accident attorney details[/url] which is also great. Also, have a look at this [url=https://brayden1d37bah5.develop-blog.com/profile]go here about wrongful death lawyer advice[/url] on top of serious truck crash lawyer, cdl vision test, car black box rules, macon law firm, defective medical devices lawyer augusta, civil trespassing laws in georgia, top truck accident attorney, car accident injury attorneys augusta, defective medical devices lawyer macon, muerte injusta abogado valdosta, not to mention this [url=https://bookmark-search.com/story17123849/personal-injury-law-firm-lakeside-and-macon-pedestrian-accident-attorney]at bing for liability attorney forum[/url] with atlanta trucking lawyer, manufacturer defect examples, product defect examples, georgia driving rules, logging truck accident lawyer, augusta car wreck law firm, atlanta truck accident attorney, personal injury attorney georgia, spinal cord injuries law firm, attorney in macon, for good measure. Check more @ [url=https://socalireefer.com/forum/showthread.php?tid=9177&pid=2420974#pid2420974]Great Clothing Store Simulator Website[/url] 94c5f79

    Noob 19129

    about 2 months ago

    For the guy asking about situs judi yang lagi gacor, bandar slot login, slot hari ini yg gacor, slot online jackpot, slot game slot game, game slot online yang lagi gacor, m slot, web gacor online, kingdom slot online, judi slot online gacor, I highly recommend this [url=https://knoxlgar78133.blogrelation.com/33288877/excellent-ideas-for-choosing-aman-88-slot-websites]new WIN1000X info[/url] or slot online slot, raja casino online, website judi gacor, link mpo play, agen mpo slot, slot yg gacor, slot online idn, koi slots, link judi, link main slot online, as well as this [url=https://raymonddeok82371.sasugawiki.com/6334699/good_reasons_for_selecting_aman88_websites]her comment is here for WIN1000X blog[/url] on top of popular win slot, nama nama agen slot, slot virtual, link daftar slot online, link slot online, slot judi olympus, web game slot online, indonesia slot online, main cuan login, all slot, and don't forget this [url=https://jaidenyqgs36936.fare-blog.com/27435142/good-suggestions-for-choosing-aman-88-slot-websites]top rated WIN1000X tips[/url] which is also great. Also, have a look at this [url=https://mariowisb88776.muzwiki.com/6916088/good_suggestions_for_choosing_aman_88_slot_websites]at yahoo for WIN1000X blog[/url] alongside all promo game slot, online slot, antara slot login, slot online slot, link yang gacor, media slot login, slot agen, website game slot, nama nama judi slot, go gacor slot login, not to mention this [url=https://johnathanxwny21087.thecomputerwiki.com/4838014/recommended_ideas_on_deciding_on_aman_88_slot_websites]this guy for WIN1000X details[/url] with web casino online, main casino slot, slot game slot game, slot online habanero, slot online link, slot mobile casino, game spin judi, link main slot gacor, nama nama link slot online, link main slot online, for good measure. Check more @ [url=https://chimatamusic.net/db/viewtopic.php?p=3334621#3334621]Updated Cross Finance Site[/url] 7981_d6

    Noob 19129

    about 2 months ago

    In response to the people asking about online casino indonesia, web hoki slot, thor 88 slot login, kode slot88, download apk slot, sini slot link alternatif, togel play slot, rtp 88 slot, permainan belum, slot casino 88, I highly suggest this [url=https://jose1a97ehj2.blog4youth.com/profile]great WIN1000X advice[/url] or game gacor slot, cuan cash, ninja slot link alternatif, cuan slot login, slot games login, permainan slots, play 88 slot, slot slot88, slot pm, slot login, and don't forget this [url=https://tvsocialnews.com/story2646848/game-slot-game-and-win1000x-login]best WIN1000X tips[/url] on top of 1k casino, slot cuan, waktu slot gacor, 88 play slot, freespin gratis, yang punya pragmatic play, pragmatic id, slot lengkap dengan rtp, slot arcade, rtp playtech, as well as this [url=http://com.caoaiai.comw.molifan.net/space-uid-2069470.html]learn more here on WIN1000X advice[/url] which is also great. Also, have a look at this [url=https://odpisz.net.pl/member.php?action=profile&uid=20]best WIN1000X tips[/url] alongside all olympus slot online, nexus slot 88, cuan88 slot online, situs pragmatic play, slot online rtp, bonanza slot 88, hoki cuan slot, champion slot online, situs pragmatic4d, slot online pragmatic play, not to mention this [url=https://logan1e23zdg9.blogsumer.com/profile]great post to read for WIN1000X site[/url] with download aplikasi slot88, slot online 88, www pragmatic play, slot hoki slot, hoki slot link alternatif, hercules 88 slot, pragmatic play itu apa, cuan jaya slot, gacor jaya, slot adalah game, for good measure. Check more @ [url=https://ekvall.co/showthread.php?tid=111697&pid=349428#pid349428]Cool DVLTOTO Site[/url] 099f6c4

    Noob 19129

    about 1 month ago

    In response to the lady inquiring about pa online blackjack, best non uk casinos, play casino games for money, great casino games, best au casino, casino website online, real gambling games, online casino online, best casino for winning, canadian online games, I highly recommend this [url=http://wwew.molifan.net/space-uid-2074685.html]high rated crab sportsbook sign-up promo info[/url] or games to play at a casino, best online blackjack casino uk, real money betting, no deposit casino offers uk, best aus online casinos, top ten casino, best blackjack bonuses, best us online gambling sites, casino games online that pay real money, english online casino, on top of this [url=http://yinyue7.com/space-uid-1022486.html]read full article about crab sports promo code link[/url] not to mention best rated online casino, popular casino online, top live casino online, best games to play online casino, best online casino real money uk, roulette casino uk, top 10 online gambling sites, 10 deposit online casino, canadian casino games, sv slot online casino, alongside all this [url=https://wiishlist.com/story17848244/gambling-terms-sports-and-bookmakers-sport]what google did to me about crab sports promo code site[/url] which is also great. Also, have a look at this [url=https://blake8e29bvw8.dailyblogzz.com/profile]super fast reply about crab sports promo code details[/url] on top of online casino that pays instantly, gambling games real money, no deposit casino play, online live roulette casino, best live casinos uk, pa casino bonus codes, online roulette sign up bonus, dplay casino, watch live casino, play online casino games, on top of this [url=https://nathan4s48iwj9.blogdun.com/profile]listen to this podcast for crab sports promo code blog[/url] with deposit 10 bonus casino, canadian online casino real money, online rivers casino, top 10 canadian online casinos, online casino casino games, top gambling games online, no casino, win online casino, online casino sign up bonus, deposit bonus, for good measure. Check more @ [url=https://www.forum.vuwpgsa.ac.nz/viewtopic.php?p=464347#p464347]Useful CuanSlot88 Website[/url] c5f79e0

    Noob 19129

    about 1 month ago

    For the person talking about kumpulan judi slot online, slot deposit pulsa 2023, microgaming rtp, casino web, game online poker, slot mania rtp, game slot link, rtp pg, game judi online, deposit gacor, I highly suggest this [url=https://daltoncgez06273.bloggerchest.com/27626141/handy-ideas-for-picking-devil666-slot-sites]best Devil666 details[/url] or website judi online, game judi, rtp slotgacor, main slot live, poker slots, slot playtech, pragmatic play demo link alternatif, slot whatsapp, slot online demo, game terbaru pragmatic play, alongside all this [url=https://emiliosbhm91246.bimmwiki.com/10174155/excellent_advice_to_selecting_devil666_sites]his response about Devil666 info[/url] not to mention demo casino, slot 10, pragmatic play casino, slot deposit xl, judi deposit, casino slot rtp, home casino, slot web, game slot yang gacor, microgaming play, alongside all this [url=https://andyyhow88776.wiki-jp.com/759082/recommended_info_for_choosing_devil666_slot_websites]his explanation for Devil666 Slot forum[/url] which is also great. Also, have a look at this [url=https://alexisdnuz46791.tokka-blog.com/27935225/good-suggestions-on-deciding-on-devil666-slot-websites]our site for Devil666 Slot details[/url] and don't forget link rtp slot, rtp idn slot, gacor slots, game online deposit, play gacor, rtp slotgacor, game play casino, link slot dana gacor, link slot online, rtp slot gacor 2023, and don't forget this [url=https://tysonleuk68021.ageeksblog.com/27229932/free-suggestions-for-picking-devil666-sites]useful Devil666 Slot info[/url] with slot gacor microgaming, rtp slot habanero, slot dana pragmatic play, slot playtech, link slot gacor pragmatic play, poster casino, casino website, play slot online, pragmatic play demo, rtp pg, for good measure. Check more @ [url=https://hawkinsmotorcoach.com/forums/thread-856-post-12912.html#pid12912]Great Buying Gold Site[/url] 99f6c4a

  • Sven

    about 4 years ago

    Thank you for your feedback I still dont know though whether or not you included the improvements in your design There seems to be a version 3 in your shop now without the switch but the voltage to be set via a fixed resistor Please correct me if Im wrong you still list the over discharge protection of both the 21 and 30 design at 26 V isnt it 24 for the DW01 or 29V for the suggested FS312F ICLast thing as you already may have noticed The punctionation is stripped from the comments

    Sven

    about 4 years ago

    Andrei?

  • Noob 2093

    about 4 years ago

    Hi I really liked this project I would like to have it but I need 5V 2A power input I am pretty new to schematics and I am still learning How can I achieve this

  • Javier Del Valle Aquino

    about 7 months ago

    Hola tu cargador es de lo ms interesante y se apega mucho a lo que requerimos para un proyecto que estamos realizandoMe pregunto si podemos contactarte por correo electrnicoLa intensin es saber si nos puedes apoyar con algunos detalles extras que requerimosEsperamos tus comentariosSaludos

Login or Sign Up to post comments on this project.