Lynx BMS Settings in VE Connect for battery size?

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Ingo Pfeiffer asked Apr 27, '22

Lynx BMS Settings in VE Connect for battery size?

Hello

Seeking confirmation of my understanding by the experts:

Installed: Lynx BMS with two Smart Lithium batteries of 200Ah capacity connected in parallel. Thus total of 400Ah installed.

In VE Connect for the Lynx BMS I need to do settings for Battery size and number of batteries. I have chosen 400Ah and 2 as in picture below.

When looking at the BMS main screen I feel this setting is reflected roughly correct when state of charge says 95% and consumption says 22,5Ah (and should be changing to 94% at 24Ah consumption)…, see below.

So, is this the correct setting? If yes, maybe the VE app setting should say „Battery/Battery bank capacity“ to be more clear? What do you think?

A follow-on question is: why is the number of batteries needed as setting info?

BMS VictronConnect

7fdce343-834f-4d9c-ab40-8f8105b4b107.jpeg (244.9 KiB)

2 |3000

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Modifications Space

Node Red Space

Answer 1 · 2022-04-27T20:20:09Z

Stefanie (Victron Energy Staff) answered · Apr 27, 2022 at 08:20 PM

@Ingo Pfeiffer

Since both batteries are in parallel, it counts as one battery. So the number of batteries in your case is 1.

The number of batteries is required for when you have series string batteries in parallel. Like 2 series strings and then in parallel, which makes the number of batteries 2. This parameter helps the BMS when the automatic balancing program is active.

1

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Ingo Pfeiffer commented · Apr 28, 2022 at 07:30 AM

Thx once again for a helpful and quick reply @Stefanie. I’ll change to 1.

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