Charge Algorithm; Procedure For Choosing A Preset Charge Algorithm; User Adjustable Charge Algorithm - Victron energy BlueSolar MPPT 150/70 User Manual

4.3 Charge algorithm

4.3.1. Overview
Several preset charge curves and one user adjustable curve are available, see table below.
The DEFAULT-setting is algorithm nr 2.
Make sure the charge algorithm is correct for the battery-type that must be charged. If
necessary, contact the battery supplier for the appropriate battery-settings. Wrong battery
settings can cause serious damage to the batteries.
Algorithm
Description
number
1 Gel Victron long life (OPzV)
Gel exide A600 (OPzV)
Gel MK
Default setting
2
Gel Victron deep discharge, Gel Exide
A200
AGM Victron deep discharge
Stationary tubular plate (OPzS)
Rolls Marine (flooded), Rolls Solar
(flooded)
3 AGM spiral cell
Rolls AGM
4 PzS tubular plate traction batteries or
OPzS batteries in cyclic mode 1
5 PzS tubular plate traction batteries or
OPzS batteries in cyclic mode 2
6 PzS tubular plate traction batteries or
OPzS batteries in cyclic mode 3
7 Lithium Iron Phosphate (LiFePo
batteries
8 (USr) Adjustable: maximum charge current
and absorption and float voltages can
be set with potentiometers
Table 3: Charge algorithm options. All voltages shown are for a 48V system.

4.3.2. Procedure for choosing a preset charge algorithm

a. Press SETUP during 3 seconds: the "Menu" icon will light up.
b. Press the "-" or "+" button several times until the screen shows
the algorithm number (a number with superscript "type").
c. Press SELECT: the number will now blink.
d. Use the "-" or "+" button to choose the desire algorithm.
e. Press SETUP to confirm the change, the value will stop blinking,
and the change is made final.
f. To return to normal mode, press SETUP during 3 seconds.

4.3.3. User adjustable charge algorithm

a. Proceed as described in the previous section, and select algorithm
number 8 (USr)
b. Press the "-" or "+" button to select the parameter that must be
changed (absorption voltage, float voltage or equalize voltage).
c. Press SELECT: the voltage will now blink.
d. Use the "-" or "+" button to chose the desired voltage.
e. Press SETUP to confirm the change, the value will stop blinking, and the change is made final.
With the "-" or "+" button it is now possible to scroll to another parameter that needs change.
f. To return to normal mode, press SETUP during 3 seconds.
Absorption
and max. Float
abs. time
V / h
56,4V / 8h 55,2V
57,6V / 8h 55,2V
58,8V / 8h 55,2V
56,4V / 4h 55,2V
57,6V / 4h 55,2V
60,0V / 4h 55,2V
)
4
56,8 / 2h
Adjustable
Adjustable
(default
(default 57,6V)
55,2V)
Equalisation
Default: off
V maxV@% of Inom
63,6V@8% max 1h
64,8V@8% max 1h
66,0V@8% max 1h
63,6V@25% max 4h
64,8V@25% max 4h
67,2V@25% max 4h
n. a. n. a.
Adjustable
(default Vabs. + 7,2V)
@25% max 4hrs
Temperature
compensation
dV/dT
mV/° C
-65 mV/° C
(-2,7 mV/° C per
cell)
-65 mV/° C
-65 mV/° C
-65 mV/° C
-65 mV/° C
-65 mV/° C
0
-65 mV/° C
7