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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 10 - Jul 15

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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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4.9 ★★★★★
Based on 1125 reviews
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Product Reviews
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Verified Purchase
Somebodyzmom
Birmingham, US
★★★★★ 5
Works well
A bit small, but works well to keep my 3 remotes and other small items organized on my side table.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
N
Verified Purchase
Norman S
Lexington, US
★★★★★ 4
Nice but Could be better
This is a nice product to house all you remotes in one spot on the night table next to a bed or where ever you keep remotes. For the most part this remote control holder is sturdy, attractive and convenient. I has two levels but is lacking a separator on each level to prob your remotes up and keep them from sliding sideways. So, I would recommend the ability to put "remote control" dividers, perhaps somehow adjustable, where you could slide the divider to the width of each respective remote to keep it standing up and not sliding sideways that create a "pile or stack" of remotes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2023
G
Verified Purchase
GoldenHVAC
Whiting, US
★★★★★ 5
Works great!
I mounted a toilet tissue paper holder on this, and then mounted it across from my toilet. This makes it about 6" closer to make it easy to reach. I also put the remote for my bodey in the organizer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
J
Verified Purchase
Jerry
Waukegan, US
★★★★★ 5
simple but perfect for my use
this is very basic, but it does what it’s supposed to.
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Reviewed in the United States on December 28, 2025
P
Verified Purchase
Perky
Phoenix, US
★★★★★ 5
Perfect
Just the right size on my nightstand to hold several items
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026

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