Projecta IS920C Intelli-Start Jump Starter FAQ & Troubleshooting

Projecta Intelli-Start IS920C - FAQ and Troubleshooting Guide

Projecta Intelli-Start IS920C - FAQ and Troubleshooting Guide


 

Overview

This article provides customer information for the Projecta Intelli-Start IS920C 12V lithium jump starter, including vehicle compatibility, charging, jump starting, indicators, troubleshooting, storage, and support guidance.

This unit uses LiFePO4 (Lithium Iron Phosphate) battery technology and is designed for 12V automotive batteries only.

Vehicle Compatibility

Question

Answer

What vehicles can I use it on?

12V petrol and 12V diesel vehicles, provided the vehicle is within the unit rating.

Can I use it on a 24V system?

No. This unit is not compatible with 24V systems.

Can I use it on household or dry-cell batteries?

No. It is designed for automotive batteries only. Using it on other battery types may damage the unit, damage the battery, or cause injury.

 

Charging the Jump Starter

How do I check the battery level?

Press the Power Button and check the battery indication:
  1. Green - fully charged
  2. Yellow - partially charged
  3. Red - low battery; recharge required

How long does it take to charge?

For the IS920C, charging takes approximately 4 hours. Charging time can vary depending on battery level and the power source used.

Why does charging appear slow?

This is normal. The unit uses a controlled, cell-balanced charging process to protect the battery, extend battery life, and reduce overheating risk.

Rapid Recharge Technology (RRT)

RRT allows the unit to recharge from the vehicle alternator after a successful jump start.
  1. Start the vehicle
  2. Leave the clamps connected for 40 seconds.
  3. The unit recharges via the alternator and automatically stops once it returns to its previous state of charge.

If RRT does not appear to work, make sure the clamps were left connected for the full 40 seconds and have the vehicle charging system checked if required.

Jump Starting a Vehicle

My vehicle did not start. What should I check?

  1. The clamps are firmly connected.
  2. The battery terminals are clean.
  3. The jump starter has sufficient charge.
  4. The vehicle is 12V.
  5. The vehicle is within the unit capacity.
  6. Cold weather may reduce performance. Retry up to 3 times if needed.

Use a maximum of 3 jump start attempts per session and wait 2-3 minutes between attempts.

What is Override Mode?

Override Mode is used when the vehicle battery is extremely low.

For the IS920C: Press and hold the JUMP START button.

Important:
Override Mode disables reverse polarity protection and short-circuit protection. Use it with caution and only when the clamp connections have been checked carefully.

LED indicators

Status / Message

Meaning

Customer action

Green

Ready

Start the vehicle.

Yellow flashing

Jump start in progress

Normal operation.

Red + alarm

Reverse polarity

Check the clamp connection. Red goes to positive (+), black goes to negative (-).

Red flashing

Short circuit or low battery warning

Disconnect, check connections, and recharge the unit if required.

Red/Green flashing

Temperature issue

Allow the unit to cool down or warm up before use.

 

Troubleshooting

Issue

Possible cause

What to do

Unit will not start vehicle

Low charge, poor clamp connection, dirty battery terminals, cold temperature, or vehicle exceeds unit rating

Recharge the unit, clean battery terminals, confirm firm clamp connection, and retry up to 3 times.

Reverse polarity warning

Clamps connected incorrectly

Reconnect correctly: red to positive (+), black to negative (-).

Unit not charging

Incorrect charger, poor connection, or temperature outside charging range

Use the supplied charger, check connections, and charge between 0°C and 45°C.

Battery drains quickly

Power bank use, long storage, or normal battery wear

Recharge after use, store with charge, and check the charge level every few months.

RRT not working

Clamps removed too early or vehicle alternator issue

Leave clamps connected for 40 seconds after starting and check the vehicle charging system if needed.

Cold weather performance issue

Low temperature reducing output performance

Retry 1-3 times and warm the unit before use where possible.

Unit overheating

High load or repeated use

Stop use and allow the unit to cool before trying again.

USB output not working

Protection mode or low battery

Recharge the unit and restart the connected device.

 

Operating Temperature Range

Function

Range

Jump starting

-20°C to 60°C

Charging

0°C to 45°C

Storage

-10°C to 45°C

 

Storage Guidelines

  1. Store in a cool, dry place.
  2. Recharge every 6 months.
  3. Do not store fully discharged.
  4. Turn off all accessories before storage.

Warranty

This product is covered by a 2-year manufacturer warranty against defects in materials and workmanship. The warranty does not cover misuse, incorrect operation, or physical damage.

Contact Projecta Support

If the issue continues, submit a support request- Click Here to Submit a Support Request  OR
call Projecta Technical Support on 1800 422 422.