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NEXPEAK NC350 - User Manual

NEXPEAK NC350
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35Amp AUTOMATIC SMART
12V & 24V BATTERY CHARGER
MAINTAINER
NC350
User Guide & Warranty
For more information and support contact: support@nexpeaktech.com
NEXPEAK
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EN/ DE/ FR/ IT/ ES
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Summary

General Safety Warnings

Electrical and Fire Hazards

Risk of shock, explosion, and fire. Avoid water, sparks, and cover. Keep away from combustibles.

Explosion and Gas Risks

Batteries can explode, releasing explosive gases. Use proper ventilation and follow safety guidelines.

Eye Injury and Chemical Contact

Wear eye protection. Battery acid can cause irritation. Flush affected areas immediately if contact occurs.

Technical Specifications

How To Use

Connect Battery

Connect the charger with the battery, ensuring red positive and black negative connections.

Select Charging Current

Select charging current level (Low, Medium, High) for desired charging speed.

Connect to Power Outlet

Connect the charger to the AC outlet, ensuring voltage compatibility (100-240V).

Select Battery Mode

Press 'MODE' to cycle through LITHIUM, AGM/LEAD, LiFePO4, and REPAIR battery types.

Battery Mode Explanations

Lithium Battery Mode

Suitable for 12V and 24V Lithium batteries used with Battery Management Systems (BMS) only.

AGM;Lead Battery Mode

Suitable for 12V and 24V ordinary lead-acid batteries including AGM, GEL, SLA, WET, DEEP CYCLE, EFB, Calcium, etc.

LiFePO4 Battery Mode

Suitable for charging 12V and 24V LiFePO4 Lithium batteries or motorcycle Lithium batteries.

Repair Mode

For battery maintenance or activation of unused or old batteries. Not all batteries can be repaired.

Important Safety Warnings

Battery Type Restrictions

For 12V/24V Lithium, Lead-acid, LiFePO4 only. Do not charge other chemistries or totally dead batteries.

Charger Handling and Environment

Charger is not waterproof. Keep ventilated, away from sun/high temperatures, and avoid dropping tools on battery.

Personal Safety Precautions

Remove metal items like jewelry when charging. Unplug from AC before maintenance or cleaning.

Screen Display Definitions

Mode Indicators

Displays for Standby, Repair process ended, Low Voltage, Battery Full, Winter Mode, Summer Mode, and Temperature.

Special Mode Displays

Explanation of Repair Mode, Test Mode, Wrong Polarity (Err), Defective Battery (Flt.), and Bad Connection.

9-Stage Charging Process

Charging Stages Explained

Details the 9 stages: Desulfation, Soft Start, Bulk, Absorption, Trickle, Battery Test, Recondition, Monitor, Float/Maintenance.

Intelligent Memory and Temp Compensation

Charger remembers last mode. Temperature compensation adjusts charging for optimal battery life and safety.

Maintain;Repair Function

Repair Mode Usage

For weak, old, idle batteries (not Lithium/LiFePO4). Follow steps to initiate and monitor repair process.

Repair Mode Cautions

Stop immediately if battery overheats or smells. Not all batteries can be repaired.

Troubleshooting Common Issues

No Display on Connection

Check clip polarity and battery charge level. Use a battery tester if needed.

Low Current; FUL Display

Caused by battery vulcanization or low water. Try repair mode or use a battery tester.

Cannot Fully Charge

May be due to vulcanization, low water, or low voltage. Stop charging and check battery liquid.

Incorrect Voltage Sensing

For 24V batteries, charge each 12V section separately if auto-sensing fails.

No Charge; Blinking Icon

Charger cannot charge totally dead batteries or those with bad cells. Try repair function.

2 Year Hassle-Free Warranty

NEXPEAK NC350 Specifications

General IconGeneral
Input Voltage100-240V AC
Charging Ports1
Output Voltage12V
Battery TypesLead-acid, AGM, Gel
Protection FeaturesOvercharge, Short-circuit, Reverse polarity
Compatibility12V batteries

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