$100/KWh Medical Grade Boston Power Sonata / Swing Cells

[@murdercom998]

I've been waiting for these cells to come back to batteryhookup. Preferably the swing cells they would be perfect for my ebike build. The -40 operating temp would be a plus in the frozen Canadian north

[@shawnerz98]

I have 4 sets of these batteries. Like Jehu shows, I too had problems spot welding my .1 mm nickel strips to the contacts. I found scuffing the contacts and soldering actually worked better. Use your own judgement to prevent thermal runaway.

[@yolo_burrito]

It says discharge to 2.75v in the graph.

[@davidwilker4795]

years ago I bought several of these medical packs. I still have most of them, as well as the holders and the case.

[@Roadsteading]

I built my first big packs with these cells and they lasted forEVER (for the chemistry)

[@ejonesss]

at 19.3 watt hour they fall just below the limit for the usps. so if you was selling them on ebay you should be able to ship them as normal mail parcel not have to declare as dangerous goods though you may still have to apply the lithium ion warning label to not put on passenger flights. or at least you can get away with shipping them by usps priority mail as long as you ensure they dont short on anything and you pre pack them and submit the package to the post office they may not say anything as long as you dont mention batteries.

[@andremartel828]

Watching the video and found the concept of using them with your 7s modules. Now that you have 4 times the batteries would you upgrade the fuse to 10 amp or 20 amp? If 20 amps Just would it be 10 amp fuses at both locations on the positive side giving you two hot standoffs in order to distribute the extra power envenly,? Just had to throw this at you since you mentioned the 2nd fuse when you designed the board years ago. A video showing heat factors exchange on boards between single or double fuse. Ok. I'm just a pain in the board. 😁

[@riceball777]

so this is two 2650mah 18650 cells wired in parallel?

[@gundan01]

Nice shirt!!! Love your videos, such a great diy content.🎉

[@dalel.d.9678]

Nice work. Very informative. How much for the circuit board and enough of the blue Boston batteries to fill it? What would the output voltage be?

[@undergod1987]

What size of stand offs are those you used with your pcb?

[@jehugarcia]

M4 x 40mm

[@undergod1987]

@@jehugarcia thank you

[@07LUTE70]

Do you still have these 5300 sonata batteries?

[@jehugarcia]

I have new in box sonatas now, jag35.com/products/boston-sonata-5300-twin-18650-battery-packs-lithium-ion

[@Shmade0304]

Ohh ya loving the content keep it coming 🙌🏽🙌🏽🔋🔋👑..wait your at home

[@Nooman62]

Hi, could you please sacrifice one to see inside construction 👍🏻

[@andremartel828]

Just found the video from 3 years ago. It's the same as this one just re-released.

[@thatonebeone]

this are perfect for my lights and fish finders and make a battery bank to charge phones and laptops and stuff ... buying

[@edoardobattaglia5157]

Hi, i am italian and i would like to take some of your batteries but there is no shipment to my country, can you do something about it? or do you know someone who gives a service like yours in my country?

[@jondavidmcnabb]

Hey Jehu, would these be essentially 7 x 3.7v = 25.9v per side for a total of 51.8v nominal for a double sided configuration? Essentially a 48v pack?

[@lousypirate]

pretty sure it's 7s2p. not 14s

[@yolo_burrito]

@@lousypirate yeah they are 2p

[@redandgoldfan3869]

kzbin.info/www/bejne/rWa6eHWmoKyrmcU he says its 24V so they are in parallel 7 series X2 in parallel

[@jondavidmcnabb]

@@redandgoldfan3869 thank you

[@iegsolarcom9698]

Going Green 🔋.

[@bircelik]

hello, can you send a package to germany?

[@chickeandtech]

No, unfortunately... i wrote same weeks ago about it.

[@stygianindustries8295]

@@chickeandtech @Bir Celik I will facilitate shipping to Germany

[@hectortarraza5020]

I need to buy a lot of batteries but I need to contact you to buy the right one. please help

[@whatta7793]

For what application?

[@hectortarraza5020]

@@whatta7793 DIY EV building a car all I need is battery

[@whatta7793]

@@hectortarraza5020 what goal do you have in mind for the car? Fast acceleration drag car, or car with a lot of range, efficiency?

[@hectortarraza5020]

@@whatta7793 Thank you for your interest in helping, my goal is to have a lot of range

[@arifuzzamanyousufi8174]

Is there any way i can have your products in Bangladesh?

[@randylenart9674]

👍😎🇺🇸

[@OWK000]

These Sonata cells almost look like they would fit in some Petzl headlamps or any headlamp that uses 3 AAA. Maybe? Checking measurements . . that's a NO. No fit. too bad.

[@alanomofo]

I'm surprised climbers haven't changed over completely to 18650's or 2700's for headlamps. I see many of them are either lipo rechargeable or aaa/AA batteries

[@808pathfinder]

Am allergic to Ion cells, LTO now your talking

[@Godofrageyt]

Can u guys ship em overseas?