Search found 22 matches

by titooon2014
Jun 04 2018 3:15am
Forum: Items for Sale - New
Topic: CHEAP NEW ORIGINAL CELLS LI-ION 18650
Replies: 789
Views: 197216

Re: CHEAP NEW ORYGINAL CELLS LI-ION 18650 FROM 1,09$ 2200-3500mAh!

I have already ordered three times (100+ cells each time) cells from Tumich, all came brand new, tested excellent, no issues whatsoever, properly unwelded. Shipping was always fast, 5 days or so to France. Some of the latest batch comes at various voltage (3.30 to 4.10V) so a bit of balance was need...
by titooon2014
Mar 26 2018 8:52am
Forum: Alternative Energy
Topic: An off-grid install in the city
Replies: 18
Views: 2279

Re: An off-grid install in the city

That's a nice and clean install, Bravo ! One thing, for lead acid batteries, you usually want to charge them @0.2C max or you'll decrease their lifespan quite drastically, especially above 0.5C. For a 200Ah battery, 0.2C would mean no more than 40A (200*0.2) usually. Moreover, as your battery gets o...
by titooon2014
Apr 20 2017 12:52am
Forum: Alternative Energy
Topic: Off grid standalone electricity supply project
Replies: 10
Views: 1381

Re: Off grid standalone electricity supply project

Hello, vk4bxi is right, if you get 178V it is because you have a modified square wave inverter, and not a pure sinewave. It is allright for most appliances, but some don' t really like it much (such as power tools). Regarding the 18650 cells did you got through the 18650 post on ES ? - The soldering...
by titooon2014
Dec 05 2016 3:01pm
Forum: Items for Sale - Used
Topic: EU - 48V 30Ah LiPo (unused)
Replies: 5
Views: 1094

Re: EU - 48V 30Ah LiPo (unused)

sorry only Europe, not worth shipping to the US, too complex.
by titooon2014
Nov 11 2016 9:44pm
Forum: Alternative Energy
Topic: off grid solar e-scooter charging facility
Replies: 25
Views: 3602

Re: off grid solar e-scooter charging facility

Hello bobc, Glad to see another person with experience in solar then ! Sorry to have been a bit harsh, but I have to say your system is quite inefficient overall from my perspective as a designer of an off grid system, with no interest in feed in tariff whatsoever. You provided very little informati...
by titooon2014
Nov 11 2016 9:28pm
Forum: Alternative Energy
Topic: Solar Charger Built For E-bikes
Replies: 17
Views: 2345

Re: Solar Charger Built For E-bikes

Hey st35326, I think no need to be perplex of people with solar and no batteries though, they are not doing solar to be offgrid at all, nor most off them do even actually understand how it works, as nowadays solar has been sold has a good money investment to people that are eco minded (or even somet...
by titooon2014
Nov 11 2016 8:40pm
Forum: Alternative Energy
Topic: Solar charging on ebike tour?
Replies: 2
Views: 631

Re: Solar charging on ebike tour?

Hello, No it will not work, because there is no inverter capable of working on a solar kit that has no battery (in your configuration your bike battery is considered as load, not battery for the solar system). Moreover, your solar panels are in DC, your battery in DC, so last thing you want is to do...
by titooon2014
Nov 07 2016 9:53pm
Forum: Items for Sale - Used
Topic: EU - 48V 20Ah Lifepo4 (unused)
Replies: 6
Views: 1116

Re: EU - 48V 20Ah Lifepo4 (unused)

Hello dafex,

No they are not screw type, if you look closely you can see the welded busbars on the picture.

However, it is very easy to remove/solder additional busbars in order to customize the config.

If you have a specific configuration in mind, don't hesitate to send me some drawings !
by titooon2014
Nov 06 2016 3:20pm
Forum: Items for Sale - Used
Topic: EU - 48V 30Ah LiPo (unused)
Replies: 5
Views: 1094

EU - 48V 30Ah LiPo (unused)

Hello ES Members, I have a few 48V 30Ah LiPo Battery pack for sale. They have been bought from Crystalyte Europe early 2013 (1100 euro each), for a project that never went on. They were never used, except for one charge/discharge cycle this month to ensure they are still new. They were stored at 3.5...
by titooon2014
Nov 06 2016 9:11am
Forum: Items for Sale - Used
Topic: EU - 48V 20Ah Lifepo4 (unused)
Replies: 6
Views: 1116

Re: EU - 48V 20Ah Lifepo4 (unused)

Hello dafex, Here are some pictures : 48V battery pack modified for 24V - 7s4p (solar application) - still I did put the remaining 2p on the picture, FYI I normally do not intend to sell this pack since I opened and modified it. I removed two cells to get 2 times 7s, then modify the balances wires t...
by titooon2014
Nov 05 2016 12:38pm
Forum: Alternative Energy
Topic: off grid solar e-scooter charging facility
Replies: 25
Views: 3602

Re: off grid solar e-scooter charging facility

Hello bobc; Interesting project you have going on, always fun to play around with solar and batteries. From my experience working on solar systems, here are some tips for you, many solutions to improve your system, it is really up to what you want and your budget. Regarding the mppt, I think you are...
by titooon2014
Oct 23 2016 3:32am
Forum: Items for Sale - Used
Topic: EU - 48V 20Ah Lifepo4 (unused)
Replies: 6
Views: 1116

Re: EU - 48V 20Ah Lifepo4 (unused)

Hello Josef,

I have 4 identical packs in 48V yes. Are you in Europe ?

If you have a particular application for them and you have some technical questions, feel free to ask!

Antoine
by titooon2014
Oct 20 2016 4:43am
Forum: Items for Sale - Used
Topic: EU - 48V 20Ah Lifepo4 (unused)
Replies: 6
Views: 1116

EU - 48V 20Ah Lifepo4 (unused)

Hello ES Members, I have a few 48V 20Ah Lifepo4 Battery pack for sale. They have been bought from Crystalyte Europe early 2013 (1100 euro each), for a project that never went on. They were never used, except for one charge/discharge cycle this month to ensure they are still new. They were stored at ...
by titooon2014
Oct 20 2016 3:20am
Forum: Items for Sale - Used
Topic: EU - Crystalyte Front HS3540 in 24'' and 26''
Replies: 0
Views: 445

EU - Crystalyte Front HS3540 in 24'' and 26''

Hello ES users, I have a few spares motors available for sale. They were bought in January 2013 from Crystalyte Europe for a project that never went through. They have never been used, except just once to make sure they do work. They have been stored properly in a warehouse, no trace of rust or dama...
by titooon2014
Oct 12 2016 4:23pm
Forum: E-Bike General Discussion
Topic: Crystalyte APM Setting Change - Now No Power
Replies: 11
Views: 1428

Re: Crystalyte APM Setting Change - Now No Power

It is quite an old thread, but if it may help people with the same crystalyte APM display "bug" as I found, it's worth sharing. Crystalyte Controller is 36-48V40A and 25A (EB312-C-2) Bug : When the controller is set to Assist(PAS), then back to Speed(Throttle), the display shows display mode speed a...
by titooon2014
Oct 07 2016 5:16pm
Forum: Alternative Energy
Topic: Solar Charger Built For E-bikes
Replies: 17
Views: 2345

Re: Solar Charger Built For E-bikes

Hello st35326 I am a tinkerer as well especially in the field of solar energy and weird battery configurations :D ... Far from me to suggest you to go through the crazy net metering application ! I tried to find something about self consumption in the US and its legality but can't find anything. In ...
by titooon2014
Oct 06 2016 8:32pm
Forum: Alternative Energy
Topic: Solar Charger Built For E-bikes
Replies: 17
Views: 2345

Re: Solar Charger Built For E-bikes

Hello, Good idea to solar charge, but I would use a grid tie inverter, a cheap one. They are not hard to come by at least in Europe, In the day, all the electricity produced by the panels will be available to the house. All the electricity not used is just not "produced". You can plug your bike on t...
by titooon2014
Oct 06 2016 8:20pm
Forum: Alternative Energy
Topic: Using a Computer UPS as a Solar Inverter
Replies: 19
Views: 3189

Re: Using a Computer UPS as a Solar Inverter

Hey steveo, Thank you for sharing about the ups, it is definitely a great idea ! May I suggest you have a look at Dr Angel thread about homemade 18650 battery pack ? For the future at least... Are your batteries brand new ? Lithium is now much better to use for solar, and considering you seem quite ...
by titooon2014
Sep 13 2016 5:53pm
Forum: Battery Technology
Topic: 48v 30ah battery Best cell config? BMS? Controller?
Replies: 8
Views: 1387

Re: 48v 30ah battery Best cell config? BMS? Controller?

Hello, Riding at 20 mph with my foldable bike (48V 13A limited), I get around 4h autonomy (80 miles) with my 13s9p (48V 26Ah) pack that uses 18650 LG MG1 (2900mAh). I do pedal a bit, and it's mostly flat here. In 48V I can reach 30 mph. Slowly but I get there (only 13A max). I doubt you'll get 10 ho...
by titooon2014
Jan 11 2016 7:37am
Forum: Alternative Energy
Topic: Possible answer for charging ebike batteries from solar?
Replies: 3
Views: 1261

Re: Possible answer for charging ebike batteries from solar?

Hello Jonathan ! On the product, i don't think it has a CC-CV algorithm for Li ion charging. So it should not be used for charging li ion without this function, only a voltage limiter is not enough. It can be done but not recommended, and not sure your li ion protection circuit would like that. More...
by titooon2014
Apr 09 2015 5:12pm
Forum: Battery Technology
Topic: Homemade Battery Packs
Replies: 1627
Views: 435554

Re: Homemade Battery Packs

I have to thank everybody in this thread, and a big one to DrkAngel, I have been experimenting a lot with reusing laptop cells and I am thrilled by the results, already three bikes equiped. It has been a big inspiration, and i hope soon to share some of my work on cell soldering, when i finally reac...
by titooon2014
Jan 26 2015 3:26am
Forum: Battery Technology
Topic: 50 Cell 18650 Charger and Capacity Tester
Replies: 12
Views: 1965

Re: 50 Cell 18650 Charger and Capacity Tester

Why would you waste time with used cells. It enough work and time with new cells. The risk of used old cells for an ebike pack. I mean what would you use them for. Not sure about hobostove, but I can see many reasons myself : - free or almost free (we can't all make the $$$ American make) - Reuse m...