Optima Digital 400 Battery Charger and Maintainer

Digital 400 Battery Maintenance Charger Features

The OPTIMA® Digital 400 boasts ultra-premium features and technology making battery care, charging and maintaining batteries easier than ever before. Convenient features include interchangeable battery clamps and ring terminals providing either permanent connection or quick connect, a wall mount bracket and convenient on unit cable storage.

Featuring an LED/LCD battery charging gauge, the OPTIMA® Digital 400 provides empty to full status of the battery being charged. The LED/LCD display includes full length messages for charge mode, status and fault conditions with real time indication of DC voltage and charging amps during charge modes. 

The OPTIMA® Digital 400 has an innovative pre-charge battery status feature providing charge level and status of your battery before charging. Designed for the professional, enthusiast and collector, the Digital 400 also includes quick set charge modes. 

Your OPTIMA® Digital 400 is for use with all OPTIMA® 12 Volt batteries, in addition to other high performance 12V AGM (Absorbed Glass Mat), 12V standard Flooded lead-acid and standard 12V AGM batteries. Experience easy operation with our quick set charge selector by battery type and size. For quick and easy charging of your battery, simply choose the battery type shown and the OPTIMA® Digital 400 will do the rest. 

Digital 400 Performance Multi-Stage Charging

Enhance the performance of your battery and extend battery life. The OPTIMA® Digital 400 employs the latest in digital, multi-stage charging. With up to 6 fully automatic modes your Digital 400 will sequence through stages 1 through 6 below:

Stage 1: Analyze your battery for the state of charge and quality of connections before charging.

Stage 2: Soft ramp charging-controlled amperage for deeply discharged batteries - when necessary. Stage 3: Fast charge bulk mode for batteries moderately discharged - also known as normal battery usage.

Stage 4: Conditioning mode for conditioning your battery with a finish/complete charge.

Stage 5: Auto maintain, float mode for keeping your battery fully charged.

Stage 6: A 30-day storage recondition mode - while your vehicle or battery is in storage and is being maintained.

Performance tip: A battery in any one state (charged or not charged) can begin to sulfate and impact battery performance. The OPTIMA® Digital 400 is designed to recondition your batteries every 30 days for up to 3 hours in the battery storage recondition mode. When completed, the auto-maintain mode will resume, while your battery is fully charged.

Additional peace of mind safety and operation features:

Spark-free connection technology. Reverse polarity and over temperature protection.

Ambient air temperature compensation during charging - Digitally controls the charger output in high heat or extreme low temperature conditions.

At-a-glance battery connected and battery fault icons.

Technical Specifications:
AC Input: 100 to 120 VAC, 60 Hz, 0.75 Amps
DC Output: Up to 14.9 VDC Digitally & Temperature Controlled
Charge Mode: Up to 4 Amps (Large Batteries), up to 3 Amps (Small Batteries)
Battery Types: AGM and Flooded (Lead Acid) Batteries
- 12V Auto / Marine
- 12V Motorcycle / Power Sports
12V OPTIMA and High Performance AGM Batteries
- Starting AGMs include OPTIMA REDTOP & BLUETOP
- Dual Purpose AGMs include OPTIMA YELLOWTOP & BLUETOP
Cables: 6’ AC and DC Cables
Size: 7.1” x 3.9” x 2.7”

Certified to:
UL 1236
CSA C22.2 No. 107.2
FCC Part 15 Class B