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SKU: 31202258059

OptiMate TS-121 Battery Tester

$40.49 $44.99
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

OptiMate TS-121 Battery TesterOptimate TS 121 OptiMate 12V Battery Tester TS 121 This pocket sized premium tester designed by TecMate is solid, reliable and easy to use. Simply connect the clips to your 12V LiFePO4 battery or connect to an installed SAE battery lead, then: Check battery charge level. A low battery cranks (starts engine) poorly. Start engine. The OptiMate TEST unit records and indicates (for 20 sec) the lowest start volts. With engine running, verify charging

Optimate TS-121

OptiMate 12V Battery Tester TS-121

This pocket-sized premium tester designed by TecMate is solid, reliable and easy to use. Simply connect the clips to your 12V LiFePO4 battery or connect to an installed SAE battery lead, then:

  1. Check battery charge level. A low battery cranks (starts engine) poorly.
  2. Start engine. The OptiMate TEST unit records and indicates (for 20 sec) the lowest start volts.
  3. With engine running, verify charging voltage from alternator and voltage regulator.

TIP: Low charge voltage causes poor battery performance. Too high charge voltage causes excessive gassing and will eventually damage a lead-acid battery. Too high charge voltage is FATAL for a LiFePO4 starter battery!

Other Details

  • Microprocessor accuracy; Fully sealed.
  • Industry standard SAE 2-pin connector.
  • Easy to follow instructions on rear panel of the tester.
  • Includes Testing unit itself and the wire clamps to connect to your battery.
  • Attaches to any SAE battery cable that you might have on your bike or car.
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: 31202258059

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4.6 ★★★★★
Based on 859 reviews
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Product Reviews
S
Verified Purchase
Susan Carr
Birmingham, US
★★★★★ 5
Lightweight, easy to apply, and perfect to use over makeup!
Style: SPF 50, Size: 5 Fl Oz (Pack of 1)
This has become my go-to sunscreen, especially for days when I’m in and out of the sun and need quick, reliable coverage. The spray goes on light and even, no thick, sticky feeling or weird white cast. I have sensitive skin and usually react to sunscreens with fragrance or heavy ingredients, but this one has not caused any irritation. I also appreciate that it's fragrance-free and water-resistant, so I can wear it at the beach or on a hike without worrying about reapplying constantly. It feels more like skincare than sunscreen, and I feel confident applying it over my makeup, not worrying that it will make it look cakey or run.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2025
D
Verified Purchase
DLynch
West Palm Beach, US
★★★★★ 3
Good SPF spray. Poor spray bottle.
Style: SPF 50, Size: 5 Fl Oz (Pack of 1)
One of the three bottles we got stopped dispensing the spray immediately. The other two were difficult to keep working. The SPF performance was very good. Used in Cabo.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2025
S
Verified Purchase
sarah lamberson
Natrona Heights, US
★★★★★ 5
No more bugs
Size: 2.5 Ounce (Pack of 12)
No more bugs. We use this all the time outside
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 25, 2025
J
Verified Purchase
Jerry Morris
Natrona Heights, US
★★★★★ 5
Great buy
Size: 2.5 Ounce (Pack of 12)
Don’t buy to many it gets old and becomes un usable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
K
Verified Purchase
Ken J
Carnegie, US
★★★★★ 5
Smells Good
Size: 2.5 Ounce (Pack of 12)
Great scent while repelling mosquitoes. Easy to pack in travel bags.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 19, 2025

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