OptiMate DC-DUO 12V 2A, TM500, for Lead-acid and Lithium batteries

Optimates TM500 DC-DUO is an Off-Grid series: 6-step 12V/12.8V 2A sealed DC to DC battery saving charger & maintainer

Features: Charge your 12V (Lead Acid) or 12.8V- 13.2V (LFP-Lithium) Battery from another 12V Battery!

No AC power is required. Ideal for both lead-acid and LFP (LiFePO4) batteries.

Use: Indoor (lowest temperature: -4 F / -20 C).

Input: 12-16 V, 2.7A max. With source battery protection > low battery warning light and automatic shut-down.

Style: Weatherproof case with wall mounts, with 1ft / 30cm AC supply lead and 6ft / 180cm charge lead ending in SAE connector.

Save: Low Volt Start of 2V

Safe: Input electrically isolated from the output. 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.

How it works: As simple as 1-2-3!

Attach the fused clip set to the short input cable (side marked 12 – 16V) and then connect the OptiMate DC-DUO to a charged source battery e.g., your vehicle s 12V battery.

The OptiMate DC-DUO s SAVE and CHARGE LEDs will blink together for 1 minute, indicating it is ready to charge a battery.

Within 1 minute* connect the output charge lead to the battery requiring a charge, using the standard clip set, or connect directly to the battery that may have the weatherproof battery lead already pre-wired.

Charging proceeds when the SAVE or CHARGE LED turns full-on. *After 1 minute the OptiMate DC-DUO turns off if not connected to the battery that needs charging.

To re-start, disconnect from the source battery and then once again reconnect.

Wait until the green TEST LED blinks. First Aid charging has been completed! Leave the charger connected for 365 long-term maintenance.

Warranty: 3-year limited replacement warranty.

What’s in the box
1 x Instruction Manual
1 x Battery clamp connector lead (50cm long) with SAE compatible connector
1 x Weatherproof Permanent connector lead (50cm long) with 5 Amp fuse with SAE compatible connector