SKU: 51433740455

OptiMate TM-281 Lithium Charger 24V

Sale price$163.79 Regular price$181.99
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Description

OptiMate TM-281 Lithium Charger 24VOptimate TM 281 OptiMate 5 Amp Lithium (LiFePO4) 24V Battery Charger TM 281 The TM 281 is the ultimate solution for 24V Lithium batteries! Automatically and safely charge, test and maintain your 25. 6V 26. 4V LiFePO4 LFP starter battery or deep cycle battery in your solar setup, light aircraft, medical equipment, or other application. The Optimate Lithium 8s 5A (TM 281) charger also features a power support mode for diagnostics or software updating.

Optimate TM-281

OptiMate 5-Amp Lithium (LiFePO4) 24V Battery Charger TM-281

The TM-281 is the ultimate solution for ’24V’ Lithium batteries! Automatically and safely charge, test and maintain your 25.6V / 26.4V LiFePO4 / LFP starter battery or deep cycle battery in your solar setup, light aircraft, medical equipment, or other application. The Optimate Lithium 8s 5A (TM-281) charger also features a power support mode for diagnostics or software updating. Plug type is USA 120V. 3-year limited warranty.

Special Features

  • SafeT adjusted charging below freezing.
  • Ampmatic charge control for Lithium adjusts current to match battery size and condition – Small battery gets less, large battery gets more.
  • Most Advanced Lithium SAVE mode: will save battery from as low as 0.5V – Continues charging if healthy, stops and warns if faulty!
  • Pushbutton-activated BMS wake-up mode safely wakes battery out of sleep mode or low discharge.
  • OptiMate Lithium 24-7 smart interactive maintenance prevents discharge from connected circuitry and guarantees more battery power, longer life!
  • TUNE Mode delivers stable 27.2V power to support battery during re-flashing / reprogramming and troubleshooting.

SAFE: No risk of overcharging. Totally safe for vehicle electronics. Sparks suppressed. Safe for long-term battery maintenance. Automatic shut-down if short-circuited or battery disconnected.

Details

  • ​​​​​​​Ideal for: Lithium (LiFePO4) 25.6V/26.4V batteries from 2.5 – 100Ah.
  • Charging Amps: 5A (AmpMatic).
  • Charging Volts: nominal: 25.6V/26.4V, range: 0.5V – 27.2V.
  • SAVE: Low Volt Start of 0.5V + 3 step low volt save & test.
  • USE: Indoor / Outdoor (lowest temperature: -4°F / -20°C).
  • INPUT: Global (100-240V 50-60Hz), high efficiency (CEC listed).
  • STYLE: Weatherproof case with wall mounts, with 6ft / 180cm AC supply lead and 6ft / 180cm charge lead ending in SAE connector. Weatherproof battery lead & battery clip set.

10-Step Program

  1. Low Volt Start (0.5V).
  2. TEST before charge.
  3. Temperature check.
  4. Ultra LOW VOLT SAVE.
  5. LOW VOLT SAVE cell monitoring.
  6. TEST cell damage.
  7. Cell-balancing CHARGE.
  8. OPTIMIZE.
  9. TEST after CHARGE.
  10. OptiMate Maintenance.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51433740455

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Kelley
Lexington, US
★★★★★ 5
Works great
Size: 8.8" x 9.3" x 1.2"
This fit perfectly in my 2017 Acura MDX. I can change my own filter in less than 5 minutes and it costs much less than the OEM. The filters lasted me about a year before I needed a new one.
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Reviewed in the United States on May 28, 2026
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Plis
Chelsea, US
★★★★★ 4
Encaja perfecto
Size: 8.8" x 9.3" x 1.2"
Trabajo muy bien
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Reviewed in the United States on March 24, 2026
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Mathew
Lexington, US
★★★★★ 5
Great product !!!
Size: 8.8" x 9.3" x 1.2"
The product was in great shape when delivered. Even though the package was thin as it is the delivery was made with card and all was well with product. The instructions were good to use and change in my car. Also it showed the make of vehicle so I won’t be confused at all. Overall it was a great buy
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Reviewed in the United States on May 13, 2026
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Amazon Customer
Waukegan, US
★★★★★ 5
Fits my Accord perfectly!
Size: 8.8" x 9.3" x 1.2"
Fits my 2008 Accord perfectly and feels just as sturdy as the OEM I used before, which cost nearly twice as much. Plus, it includes activated carbon, something the OEM didn’t have.
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Reviewed in the United States on May 15, 2026
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Susan F. Montville
Omaha, US
★★★★★ 5
Easy to do it yourself and save!
Size: 8.8" x 9.3" x 1.2"
One place wanted $85 to replace this! Another wanted $50! I ordered this for $10, watched a YouTube video and did it myself! Super easy!
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Reviewed in the United States on May 10, 2026

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