Projecta IC25RV Intelli-Charge Battery Charger FAQ & Troubleshooting Guide

Projecta IC25RV Intelli-Charge Battery Charger FAQ & Troubleshooting Guide

Projecta IC25RV Intelli-Charge Battery Charger FAQ & Troubleshooting Guide


Applies To

Projecta IC25RV
Intelli-Charge RV Battery Charger
12V 25A 7 Stage Switchmode Battery Charger
Lead Acid and Lithium Battery Charging


Overview

The Projecta IC25RV is a 12V 25A Intelli-Charge battery charger designed for permanent RV installation.

It supports selectable battery chemistry modes including Lithium, GEL, AGM, WET and Calcium. For lead acid batteries, the charger uses a 7-stage charging process. For lithium LiFePO4 batteries, it uses a dedicated 5-stage lithium charging algorithm.

The IC25RV is supplied with 1.5m terminated leads for permanent fitment to RV applications.


Key Features

The IC25RV includes:

7-stage charging for lead acid batteries
5-stage charging for lithium batteries
Selectable battery chemistry
Adjustable charge rate up to 25A
Power Supply mode
Manual Recondition mode
Automatic Recondition function
Float maintenance charging
LCD screen and LED charge indicators
Direct RV installation
1.5m terminated leads
Polarity protection
Over temperature protection
Switchmode technology
Cooling fan
Remote control display support
Temperature compensation support


Battery Compatibility

What batteries can the IC25RV charge?

The IC25RV can charge 12V rechargeable lead acid and lithium batteries.

Supported battery chemistry types:

Lithium
GEL
AGM
WET
Calcium

What battery size is suitable for the IC25RV?

Recommended battery range:

Automotive: 80–3000CCA
Marine: 110–4200MCA
Deep cycle: 14–500Ah
Lithium: 4–250Ah

Can the IC25RV charge 6V or 24V batteries?

No.
The IC25RV is a 12V battery charger only.


Charging Operation

How does the IC25RV charge lead acid batteries?

For GEL, AGM, WET and Calcium batteries, the IC25RV uses a 7-stage charging process:

Desulphation — Breaks down sulphation in batteries that have been left flat.
Soft Start — Gently introduces power to the battery.
Bulk — Charges at maximum current up to the selected battery voltage.
Absorption — Charges the battery to full capacity using controlled voltage.
Analysis — Tests whether the battery has accepted charge.
Recondition — Attempts to restore batteries that cannot hold charge.
Float — Maintains the battery at 100% charge.

For Calcium mode, an Equalisation stage is also used.

How does the IC25RV charge lithium batteries?

When Lithium mode is selected, the IC25RV uses a 5-stage lithium charging profile:

Soft Start 1 — Charges at 5% of selected current until the battery reaches 8.0V.
Soft Start 2 — Charges at 25% of selected current until the battery reaches 10.0V.
Bulk Charge — Charges at the selected current up to 14.2V.
Absorption — Completes charging at reduced current.
Float — Maintains the battery at 13.5V.


Charge Rate Selection

What charge rates are available on the IC25RV?

The IC25RV supports:

2A
6A
12A
25A

Recommended guide:

2A: 14–40Ah deep cycle / 80–240CCA automotive / 110–330MCA marine / 4–20Ah lithium
6A: 40–120Ah deep cycle / 240–720CCA automotive / 330–1000MCA marine / 12–60Ah lithium
12A: 80–240Ah deep cycle / 480–1440CCA automotive / 660–2000MCA marine / 24–120Ah lithium
25A: 170–500Ah deep cycle / 1000–3000CCA automotive / 1400–4200MCA marine / 50–250Ah lithium


Installation Notes

What is different about the IC25RV?

The IC25RV is designed for direct RV installation.

The manual states it is supplied with 1.5m terminated leads for permanent fitment to RV applications.

Who should install the IC25RV?

Installation should be completed by a suitably qualified person.

Any modification to the 240V mains lead must be carried out by a qualified person and must comply with national wiring rules.


Power Supply Mode

Can the IC25RV be used as a power supply?

Power Supply mode is designed to operate as a float charge to maintain a battery while a load or appliance is running from the battery.

Power Supply mode will only operate when connected to a battery.


Recondition Mode

What does Recondition mode do?

Recondition mode can help restore batteries that have been deeply discharged by equalising the cells.

The manual states that Recondition mode runs for 4 hours, then the charger continues with a normal charge cycle.


Common Troubleshooting

The IC25RV display reads 0.0V and does not appear to be charging. What should I check?

Check the following:

Battery voltage is above 1.0V.
Battery connections are correct and secure.
Positive and negative wiring is not reversed.
240V mains power is ON.
Charger On/Off switch is ON.
Correct battery chemistry is selected.
Correct charge rate is selected.
Battery is not frozen, damaged or faulty.
There are no excessive loads connected during charging.


Can I charge while an appliance is connected to the battery?

The charger can charge while an appliance is connected, but the load can affect battery measurement.

For best charging accuracy, disconnect or turn off appliance loads.

If an appliance must remain connected, Power Supply mode is recommended.


Fault Codes

Err — Short circuit or reverse connection.
F01 — Bulk charging has timed out after 22 hours. Battery may be faulty.
Dash / horizontal line fault — Recondition mode has timed out after 3 attempts.
OTP — Charger has overheated. Check ventilation.
OLC — Sensor wires are not connected correctly.
OCP — Charger has encountered an error. Contact support.


Specifications

Part number: IC25RV
Type: 7-stage lead acid / 5-stage lithium
Input: 230–240VAC, 50Hz
Input power: 450W
Output voltage: 12V
Output current: 2A / 6A / 12A / 25A
Minimum start voltage: 1.0V
Back drain: 3mA
Lead acid float voltage: 13.7V
Lithium float voltage: 13.5V
Battery types: Lithium, GEL, AGM, WET, Calcium
Automotive range: 80–3000CCA
Marine range: 110–4200MCA
Deep cycle range: 14–500Ah
Lithium range: 4–250Ah


Safety Warnings

Use indoors only.
Do not expose the charger to rain.
Do not attempt to charge non-rechargeable batteries.
Never charge a frozen battery.
Use in a well-ventilated area.
Keep sparks and flames away from the battery.
Disconnect mains power before connecting or disconnecting battery leads.
Do not use the charger if the AC cord is damaged.
Do not allow children to use or play with the charger.
The charger must be plugged into an earthed socket-outlet.


When to Escalate

Escalate the case if:

The charger repeatedly shows fault after wiring, polarity and battery condition are confirmed.
The battery is swollen, leaking, frozen or physically damaged.
The charger case, AC cord or output leads are damaged.
The customer reports overheating, smoke, burning smell or sparking.
The charger trips mains power.
OCP fault is displayed.
Warranty assessment is required