Optimate DC-DC Duo Battery To Battery Charger & Maintainer Including Lithium

Description
Delivery
Returns

CHARGE YOUR 12V BATTERY FROM ANOTHER 12V BATTERY! NO AC POWER REQUIRED.
Recharge your trailered motorcycle, ATV or speed boat’s battery on the way to the venue.

OptiMate DC to DC draws power from your vehicle’s or an external 12V battery to save, charge and maintain another 12V battery.

OptiMate DC-DC – the Unique battery to battery charger!

Charge without AC power
Maintain Remote Battery
Save your ‘dead’ battery
.....from another 12V battery or DC supply!

OptiMate DC to DC, recovers, charges & maintains a 12V lead-acid or lithium battery from another 12V battery or DC supply.
OptiMate DC to DC brings you the advanced OptiMate features to places where there is no access to an AC Mains Power supply. Recover, charge and maintain your battery using a larger source battery (ideally greater than 1.5 times the target battery’s capacity) without fear of discharging the source thanks to OptiMate's Source Battery Protection.

How it works

Safety check: Optimate DC->DC must be connected to a battery (retaining minimum 1V) to activate its output.
Recovery: If the battery is in a deep discharged state the OptiMate will offer a 0.2A until the voltage increases to 8.8V. Followed by a pulse recovery stage at 2A.
Bulk Charge: A constant current of 2 A (max) efficiently brings the battery close to full charge.
Charge verification: The circuit verifies battery charge level (2 hours maximum). If the battery requires further charging, BULK CHARGE recommences for brief periods. These revisions may occur as many times as is necessary to reduce the battery's current demand below 200mA at 13,6.
Charge retention test: Delivery of current ot the battery is interrupted for 30 minutes, determining the battery's ability to retain charge. For batteries with a GOOD state of health, LED #5 (green) should continue to flash for the full 30 minute period.
Charge maintenance: LED #5 or 6 indicates depending on the outcome of the voltage retention test.The maintenance charge mode is designed to preserve the DC source battery whilst maintaining the battery connected for maintenance at full charge. A charge period intermittently alternates with a monitor period. Length of charge and/or monitor period depends on the drain of connected circuitry from the MAINTAINED battery. A charge period is activated when voltage of a the maintained battery reduces below 12.9V and continues until the voltage reaches 13.6V. LED #5 or 6 indicates continuously during the charge period. During a monitoring period no charge is delivered. Current draw from the SOURCE battery is limited to what the charger reuqires to monitor the MAINTAINED battery. During battery monitoring mode LED #5 or 6 will flash every 10 seconds to indicate battery status (as determined during the previous voltage retention test). The charge and monitor cycles will repeat until either the SOURCE battery (or DC supply) or MAINTAINED battery is disconnected or the SOURCE battery is completely discharged.
Source battery protection: warning light and automatic shut-down. Once the source battery voltage reduces below 10V, the OptiMate DC-DC will shut off avoiding deep discharge of the source battery.

Technical Specifications

Ideal for: 12V lead-acid batteries 6Ah to 96Ah, AGM/MF, STD, GEL, AGM spiral cell and LFP 12.8V-13.2V batteries from 3 – 96Ah
Program control: 7 stages, fully automatic
Output current (bulk charge): 2A
Automatic desulphation: Yes
Charge time limit: 48 hours (maintenance time: unlimited)
Maintain / test cycles: 30 min / 30 min (alternating hourly)
Charge retention test: Range: 12.2 - 12.7V. GOOD (green) = battery voltage > 12.7V
Size: 167 x 65 x 46 mm
Weight (packed): 0.6 kg
Enclosure: fully sealed (IP54), 4 x wall mount tabs
Input cable length: 30 cm
Output cable length: 2m
Included Accessories: O1 fused eyelet set, O4 clamps set for bench charging, O14 fused clamps set for source battery connection
Operation temperature range: From –20ºC <-> 40°C / –4°F <-> 104°F
Warranty: 3 years
Ratings / approvals: IP54, CE, NRTL (UL & CSA), SAA (AU & NZ), approved by TUV Sud. BC (California Energy Compliant).

A comprehensive range of optional accessories is available here

Availability: If the ADD TO CART button is visible this item is in stock and can be despatched the same day if ordered before: 2pm (Mon-Fri) Next working day delivery available for mainland UK. Please allow an extra day for Scottish Highlands & Islan

You may return items within 60 days of delivery for a full refund. We'll also pay the return shipping costs for orders over £25 or if the return is a result of our error (you received an incorrect or defective item, etc.). We would expect the return to be in the original undamaged packaging and in resalable condition.

You should expect to receive your refund within two weeks of giving your package to the return shipper, however, in many cases you will receive a refund much quicker. This time period includes the transit time for us to receive your return from the shipper, the time it takes us to process your return once we receive it, and the time it takes your bank to process our refund request.

If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.