Spec Sheet

TecMate North America TecMate International

1100 Invicta Drive #22,

Oakville, ON L6H 2K9, Canada

Sint-Truidensesteenweg 252

B-3300 Tienen, Belgium

www.tecmate.com www.tecmate-int.com

How it works

1. Safety check: OptiMate 3+ will only activate if connected to a battery that has at least 2V of charge.

2. Desulfation and recovery: if the battery’s resistance is abnormally high due to sulfation, a voltage of up to 20V is

automatically applied to overcome this to recover very flat or neglected batteries (disconnected from the vehicle)

until they are able to accept the normal charge program.

3. Bulk charge: a constant current of 0.6A brings the battery close to full charge.

4. Charge verification: as soon as the rising resistance causes the charge voltage to reach 14.3V, the voltage is limited

at 13.6V for 30 minutes while the circuit monitors the actual voltage and the current absorbed by the battery. If within

30 minutes the achieved charge is less than optimal, the program goes back to bulk charge and the process repeats.

5. Charge retention test: when the charger confirms that an optimal charge has been achieved, the first check for

battery (and connected system) power leakage begins. Depending on the voltage retained during 30 minutes, an

“OK” (green LED) or “not OK” (red LED) test result is displayed. These 30 minute test periods repeat hourly until the

OptiMate 3+ is disconnected, so that the battery status indication is continually updated.

6. Charge maintenance: during alternate 30 minute periods, at a float limit of 13.6V the battery is offered charge

current (up to the maximum) it needs to sustain it against any small connected loads or power leakage and against

natural self-discharge.

OptiMate 3 +can stay connected to the battery indefinitely and the battery will be safe & 100% charged.

(Standard filler cap batteries need their liquid level checked regularly during long term connection.)

Technical Speciﬁ cations

Use on the following 12V lead-acid batteries:

AGM/MF, Standard, & GEL batteries

Size: 2Ah to 45Ah rated capacity

Program control 5 stages, fully automatic

Reverse drain current less than 0.5mA

Output current (bulk charge) 0.6A

Automatic desulfation YES

Charge time limit safe to leave connected for months at a time

Maintain / test cycles 30 min/30 min (alternating hourly)

Charge retention test monitors during 30min no charge intervals

Size 7 ½ x 3 x 2 ¼ inches (190 x 75 x 56 mm)

Weight (packaging) 1.7lbs (2.4lbs) – 0.8kg (1.1kg)

Wall mounting easy direct wall mounting

Input cable length 6ft (2m)

Output cable length 6ft (2m)

Accessories Included SAE-71 weatherproof fused ringlet set

SAE-74 clamps set for bench charging

Operation temperature range From -20°C / -4F to 40°C/104F

Warranty 3 years