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OptiMATE 5 Voltmatic 6v & 12v 2.8 Amp 8-Step Smart Charger

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Product InformationStore Part Number: TM-223


The OptiMate 5 VoltMatic TM-223 can SAVE & CHARGE all 6 V & 12 V lead-acid batteries. Simply connect the charger to the battery, the VoltMatic micro-processor automatically makes the correct charge voltage selection for a 6 V battery in any condition or healthy* 12 V battery and then proceeds to charging. Charge current is regulated according to connected battery size and condition. Leave connected for unsupervised months-long maintenance charging; OptiMate senses the battery condition, delivers charge when needed to keep battery at 100%.

 * Manual over-ride for very low voltage 12V batteries is available. 


  • Automatic 6 V or 12 V selection for a healthy battery (according to battery voltage) with manual override for a dead flat 12 V battery.
  • Saves low voltage sulfated batteries. Starts Charging from 1 V.
  • Constant current BULK & PULSE ABSORPTION charge mode.
  • Battery is ready to use. Leave connected for unsupervised months-long maintenance charging; OptiMate senses the battery condition, delivers charge when needed to keep battery at 100%.
  • Warns of battery problems e.g. battery could not accept any charger or cannot retain sufficient voltage after disconnected.
  • Totally safe for vehicle electronics.
  • Spark free hookup.
  • Automatic shut-down when battery is disconnected.
  • Indoor / Outdoor (lowest temperature: -4° F / -20° C).
  • Ideal for STD, AGM & GEL 6 & 12 V batteries from 8–120 Ah (up to 192 Ah for 6 V).
  • Global Input (100–240 V 50–60 Hz), high efficiency (CEC listed), fully sealed.
  • Weatherproof case with wall mounts, with 6ftAC supply lead and 6ft charge lead ending in SAE connector. Weatherproof battery lead & standard battery clip set
  • 3 Year Warranty



Tech Specs

  • Dimensions (LxWxH): 6.5 x 2.5 x 1.75 in
  • Weight: 1.34 lb
  • Shipping Weight: 3.0 lb
  • AC Input Voltage: 100–240 V
  • AC Input Frequency: 50–60 Hz
  • AC Input Amps: 0.90 A @ 100 VAC / 0.40 A @ 240 VAC
  • Power Useage (no battery connected): 0.0089 kWh / day
  • DC Output Amps: 2.8 A (12 V) / 4.0 A (6 V)
  • DC Nominal Voltage: 6 V / 12 V
  • DC Bulk Charge: 7.1–7.25 V (6 V) / 14.2–14.5 V (12 V)
  • DC Absorption & Equalisation Charge: 7.1–7.25 V (6 V) / 14.2–14.5 V (12 V)
  • Model: TM-223
  • Manufacturer: Optimate
  • DC Float Voltage: 6.8 V (6 V) / 13.6 V (12 V) alternating w/ 30 minute rest
  • Reverse Drain Current: less than 0.5 mA
  • Charge Time Limit: 72 Hours (maintenance time: unlimited)
  • Maintain / Test Cycles: 30 min / 30 min (alternating hourly)
  • Charge Retention Test: GOOD (green) = battery voltage > 12.4 V
  • Enclosure Type: IP54 Fully Sealed
  • Input Cable Length: 6 ft
  • Output Cable Length: 6 ft
  • Operating Temperature Range: -20° C–40° C / -4° F–104° F
  • Ratings / approvals : Safety, EMC, Energy Efficiency, enclosure seal rating: IP54, CE, NRTL (UL & CSA), SAA (AU & NZ), approved by TUV Sud. BC (California Energy Compliant)
  • Warranty: 3 Years
  • Manufacturer Part #: TM-223
  • UPC: 5425006143233
  • Made In: Asia

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Reviews and Ratings

3.00 Average
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Rated 3.00/5 Stars from 1 customer reviews.

Do you own the TM-223? Please, tell us what you think about it. It helps us provide you with better products. Please note that it may take up to 72 hours for your review to appear.

It works well, but could be easier to use
This product does a good job of maintaining batteries. I question it's ability to save deeply discharged batteries. They claim "Saves low voltage sulfated batteries. Starts Charging from 1 V." In my experience, if the battery is deeply discharged the charger will detect it as a 6v battery (even if it's a 12v battery), and will only charge it to 6v. There is a way to override this, but it requires a trip to the owner's manual to determine how to force it into 12v mode. Even then, the battery will not fully recover it's full capacity. This device would be more useful if it was easier to set it for 6v or 12v (the "smart" setting it currently has will get it wrong if the battery is below 6 volts).
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Written by on Oct 27, 2019. — (2 of 3 customers found this review helpful

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Specification Sheet


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