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MEGAPULSE HOW-TO




Reading the LEDs (Mk3, Mk4)
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Changing the LO / HI / WW mode
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Interpreting the battery load test results (Mk3, Mk4)
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Which mode should I use?
LO: Default setting.   Switches off when battery 80% discharged.
Suitable for most petrol/diesel vehicles, UPS and solar/wind applications.
HI: Switches off when battery is not being charged.
Suitable for most electric vehicles, UPS applications.   (Golf car mode)
WW: Switches off when battery is being charged, or is 80% discharged.   (Aircraft mode)
NOTE: Batteries that lie idle for long periods should be left on trickle charge (e.g. 100mA) with Megapulse in LO mode.   This keeps Megapulse operating and minimizes battery deterioration.

Table showing the battery voltage < below & above > which Megapulse Mk.4 switches off:

Battery voltage LO voltage HI voltage WW voltage
6v < 5.3v < 6.4v -
12v < 10.5v < 12.8v > 12.8v
24v < 21.0v < 25.6v > 25.6v
36v < 32.0v < 38.4v -
48v < 42.5v < 51.2v -

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Simple operational test
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Issues with sealed/flooded lead acid batteries
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Notes on charging lead acid batteries
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Lead-antimony lead-acid battery
battable1(type: png)

Hybrid lead-acid battery
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Lead-calcium / silver calcium lead-acid battery
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VRLA lead-acid battery
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AGM lead-acid battery
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How long a battery can power Megapulse without being recharged
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Shipping information and dimensions

  • DESCRIPTION SIZE (mm) WEIGHT (kg)
    Megapulse Mk.5 unit: 92 x 52 x 17 0.120
    Megapulse Mk.4 unit: 100 x 58 x 21 0.182
    Megapulse filter unit: 130 x 85 x 30 0.212
    Megapulse Mk.5 unit:   (shipping weight) 155 x 135 x 22 0.174
    Megapulse Mk.4 unit:   (shipping weight) 200 x 135 x 40 0.248
    Megapulse filter:           (shipping weight) 150 x 135 x 40 0.276


    DESCRIPTION SIZE (mm)
    Megapulse Mk.5 mounting hole (4mm dia) spacing: 78 x 38
    Megapulse Mk.4 mounting hole (3.5mm dia) spacing: 85 x 40
    Megapulse filter mounting hole (4mm dia) spacing: 60 x 80
    Megapulse pos / neg cable length (approx): 470 / 470
    Megapulse cable lug int. dia.: 8
    Megapulse filter screw terminal dia.: 6
    Megapulse filter terminal spanner size: 10

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