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electrical:12v:renogy_dip_switches

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DRAFT - please report errors

DIP switches on Renogy DC-DC chargers

TL;DR

  • the DIP configuration tables and nomenclature in the 20-40A-60A DCC1212 series manual are needlessly confusing. The tables below intend to correct that
  • the DIP switch area has indicator that shows ON↓. Pay close attention to this, especially if the charger is mounted and you are looking at it from an odd angle.
  • in the tables below, lithium (Li) profiles effectively means “floatless” and lead (Pb) means “with Float stage”. It is possible to define a quasi-Float for LiFePO4 using a “lead” profile; see below.

about these summaries]

profiles without float (lithium chemistries)

Li Boost voltage SW1 SW2 SW3 SW4 SW5
LiFePO4 14.0v OFF OFF ON ON OFF
LiFePO4 14.2v ON OFF ON ON OFF
LiFePO4 14.4v OFF ON ON ON OFF
LiFePO4 14.6v1) ON ON ON ON OFF
12.6v2) OFF OFF OFF OFF OFF
12.8v OFF OFF ON OFF OFF
13.0v OFF OFF OFF ON OFF

An explanation of Floatless charging

profiles with float (lead chemistries)

boost

Pb Boost voltage SW1 SW2 SW3 SW4 SW5
14.1v3) OFF ON ON
14.4v4) ON ON ON
14.7v5) OFF OFF ON

float

Pb Float voltage SW1 SW2 SW3 SW4 SW5
13.2v ON OFF ON
13.5v OFF ON ON
13.8v ON ON ON

using a lead profile to float Li

There are reasons for and against "floating" lithium.

If you

1)
not recommended - secessus
2)
3S Li-NMC, for example
3)
gel?
4)
AGM?
5)
flooded?
electrical/12v/renogy_dip_switches.1725303842.txt.gz · Last modified: 2024/09/02 15:04 by frater_secessus