In your place, you should not worry about the speed of delivery, but rather take care of the guaranteed safety and reliability of the elements from this manufacturer, which today already makes very dangerous elements :person_facepalming:
Here is an example of the quality of these black elements, which can be purchased in the official store “liitokala Official Store” LiitoKala-5000 (black)
Read the reviews, where you can find the story of one of the last buyers, who, together with the charger IMAX, these elements suddenly began to explode one by one. His review is in Russian, so here I can provide a literal translation with attached photos, which he sent.
12.10.2018
- “Заказывал на электровел 40 шт. Буду собирать 13s3p (надеюсь получить 48v 15000mah). Дошло быстро CDECKом, всё соответствует описанию. Есть небольшой разброс по вольтажу. Но тест на ёмкость показал ровно 5000mah (хотя разряжал до 3v) Насколько они долговечны время покажет, но а пока рекомендую.”
- “I ordered 40 pcs for electrovel. I will collect 13s3p (I hope to get 48v 15000mah). It came quickly CDECK, everything fits the description. There is a small variation in voltage. But the capacity test showed exactly 5000mah (although it discharged up to 3v) As far as they are durable, time will tell, but for now, I recommend.”
13.10.2018
- “Проект под угрозой! Какие-то они реально взрывоопасные! Я чуть хату не спалил. Заряжал IMAXом до 4.2V током 0.5C периодически проверяя чтобы не было нагрева, как вдруг шипение и сильный хлопок, забегаю в комнату а там: шторы горят, линолеум горит, пол комнаты горит. Еле потушил. БУДТЕ ОСТОРОЖНЫ! P.S. Взорвался третий по счёту. Осталось ещё 37 проверить.”
- “The project is under threat! Some of them are really explosive! I almost burned the hut. I charged IMAX up to 4.2V with current 0.5C periodically checking that there was no heating, when suddenly hissing and strong cotton, I run into the room and there: the curtains are burning, linoleum is burning, the floor of the room is burning. Hardly put out. BE CAREFUL! P.S. Blasted the third in a row. There are still 37 more to check.”
Of course, briefly checking the batteries on test benches and drawing graphs is one thing, and operating them in everyday life is another matter :exclamation: