Add more battery types and 12S support in Battery config

[rubenCodeforges]

Description

The Battery configuration section needs additional battery types and support for 12S configurations. Current options are insufficient for users with larger setups.

User also notes that ArduPilot battery thresholds are designed to allow for RTL and protect battery health, which differs from Betaflight-style approaches. The threshold calculations should reflect ArduPilot's safety-first philosophy.

Expected Behavior

• Support for 12S battery configurations
• More battery chemistry types available
• Threshold calculations appropriate for ArduPilot use cases (allowing for RTL margin)

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Source: Discord (codeforges)
Severity: medium
Label: Feature
Discord Message IDs: 1474667983052865566

[kschoelpple]

I second that.
....Be nice to have Lead Acid batteries included. Perhaps with voltage settings like 12,24 and 48V.

Thanks

[rubenCodeforges]

@kschoelpple its in RC 2 Release now