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Posebno oblikovan okvir električnega kolesa je narejen iz železove zlitine z osrednjo integriranim prostorom, kjer se nahaja baterija, krmilnik, DC/DC pretvornik, varovalke, alarm…

DIY - How to make a battery pack from RC Li-Po batteries for eBike -electric bike

A tipcal RC Li-Po battery is very small, cheap, light and hase ahigh discharging and charging current.
The discharging current  ranges from 10C onwards. So if we have a 20C 5000 mAh=5Ah battery pack, a short duration 100 A discharging current  (50A long duration) battery pack  can be obtained.
It is important to note that handling of Li-Po bateries  requires extreme caution! In particular, a damaged Li-Po cell  can easily short circuit,...

16. december 2014

DIY - How to Make an eBike Battery Pack from old Li-Ion 18650 laptop batteries


Batteries and battery packs are fairly expensive.

A laptop battery pack consists of a number of individual 18650 Li-Ion cylindrical battery cells. These cells might look like  standard AA alkaline batteries, but theyare actually slightly longer and wider than an AA battery. These are lithium cells which go by the part number “18650″ (this is usually printed on the side of the cell).

Used lithium cells like these could...

20. november 2014

Basic understanding of LiPo, Li-Ion and LiFePo4 battery, its use and care

Rechargeable Li-ion, Li-Poly and Lithium Iron Phosphate (LiFePO4) batteries differ from the standard Lithium batteries in that the latter are not rechargeable. The lithium-ion batteries Li-Ion usually have a nominal voltage of 3.6V or 3.7V., The LiFePO4  have a nominal voltage of about 3.2V or 3.3V and the lithium-polymer Li-Po batteries have a nominal voltage of 3.6V per cell.
With Li-ion and LiPo batteries the recommended per-cell safety zone is...

17. oktober 2014

Ecomeet 2014 in Ljubljana

 Ecomeet web site and gallery:

8. oktober 2014

3. Srečanje električnih vozil Vrhnika 2014

3. Srečanje električnih vozil Vrhnika 2014 v okviru argonavtskih dnevov 21.6.2104

6. junij 2014


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