Wrist fasteners

TIP: Low charge voltage causes poor battery performance

Protection is offered by a microinjected 3D Brush Guard on the pinky and knuckle areas

Aggressive lightweight design

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TecMate - OptiMATE 5 Hyperice Wrist fastenersOptiMate 5 saves batteries from as low as 2V and will then charge and maintain the battery, all automatically. Perfect for months long maintenance of any size 12V lead acid battery from 15 up to 192Ah deep cycle, automotive (also EFB batteries start stop systems), marine, motorcycle 6 step 12V 4A battery saving charger tester maintainer CHARGING AMPS : 4A (Constant current, temperature compensated) USE : Indoor Outdoor (lowest temperature: 4F 20C).