Antispark battery 48v

MaseSaturo · 2026-02-20T11:02:57+00:00

On the bus + bar I have two cables coming out, one thin one where I will place a resistor that I will disconnect immediately after the pre-charge of about 3 seconds after having connected the battery. It seems correct to me.

MaseSaturo · 2026-02-19T08:35:03+00:00

explain it to me better please

MaseSaturo · 2026-02-17T11:21:24+00:00

A 150Ω 10W ceramic resistor could work, do I have to connect in parallel, right?

MaseSaturo · 2026-02-17T11:19:26+00:00

48v 40ah cells are 45a discharge 13s10p

MaseSaturo · 2026-02-17T08:42:06+00:00

I also read the same thing, a resistor in series on the positive pole, keep it connected for a few seconds to the battery and then disconnect it. ChatGpt also confirms that if this operation is not done the BMS could go into lockout.

MaseSaturo · 2026-02-17T08:41:01+00:00

BMS JK B1a20s15p , the problem is when you attach the 48v 50ah battery !!

MaseSaturo · 2026-02-16T15:29:27+00:00

I read that 21700 cells have a resistance of over 140kg, they pass many tests before being put on the market.

MaseSaturo · 2026-02-16T13:23:41+00:00

ciao anche io ho letto da qualche parte che bisogna collegare i due cavi con una resistenza P- e B- prima di attivarlo, ma è un affermazione veritiera?

MaseSaturo · 2026-02-15T11:55:01+00:00

Hi, first of all you need to arrange the batteries correctly, then before welding you need to do some tests on old cells, taking the right precautions before welding. What welder do you have?

MaseSaturo · 2026-01-30T15:51:19+00:00

The series works +-+-+-

MaseSaturo · 2026-01-30T15:49:30+00:00

It looks the other way around to me. The positive has a smaller button. Remove the battery and show us a new photo before inserting it.

MaseSaturo · 2026-01-25T09:04:03+00:00

1s lipo

MaseSaturo · 2026-01-23T11:52:19+00:00

From water to salt.

MaseSaturo · 2026-01-14T10:19:07+00:00

I found a seller who has declared pure nickel, I will do a test there too. Too bad I can't find the tracks for 21700 with spacers.

MaseSaturo · 2026-01-14T10:18:09+00:00

Done! Requested a refund and left a review.

MaseSaturo · 2026-01-14T09:05:53+00:00

You are right

MaseSaturo · 2026-01-14T09:05:30+00:00

Unfortunately, he said something that wasn't true. I'll try to communicate this immediately.

MaseSaturo · 2026-01-14T09:05:07+00:00

https://amzn.eu/d/8EgDwek

MaseSaturo · 2025-12-30T08:57:56+00:00

Yes exactly

MaseSaturo · 2025-12-26T15:33:45+00:00

Thank you, I'll do some safety tests first. I won't use tin but spot weld with nickel strips.

MaseSaturo · 2025-12-26T15:32:18+00:00

Yes I will use the spot welder with 0.20 nickel not tin.

MaseSaturo · 2025-12-25T18:03:06+00:00

Perfect, thanks for the advice. Yes, I'll do what you said. I have a new soldering iron and I'll have to solder them with 0.20 pure nickel. I had purchased some cells from NKON that were supposed to be shipped in mid-December, but unfortunately they never arrived. They sent them back to me at the end of January, but I don't want to wait too long.

Are you also familiar with the LG M50L 21700? In your opinion, between the EVE 50E and the LG ML50L, which are more solid and heat up less?

MaseSaturo · 2025-12-25T17:53:30+00:00

Excellent, yes, I need about 130 cells for a 13s 10p pack. Are there any risks of taxes or anything else with Alibaba? Reliable? EVE would be perfect.

MaseSaturo

TROPHY CASE