OptiMate Solar DUO can charge and maintain the following battery types:
STD: 12V ‘wet’ cell / refillable lead-acid battery. Liquid acid can leak out if battery is turned on its side.
AGM: 12V sealed lead-acid battery, acid is fully contained within the battery. A 12V AGM battery holds a higher charged voltage than
STD lead-acid batteries.
GEL: 12V GEL sealed lead-acid battery, acid is fully contained within the battery. A GEL battery holds similar charged voltages to AGM.
LFP: 12.8V / 13.2V sealed Lithium Ferrous Phospate battery. Lithium batteries contain no acid. A LFP battery holds a higher charged
voltage than AGM / GEL.
Important - OptiMate Solar DUO is suitable ONLY for 4 series cell Lithium Ferrous Phosphate or Lithium Iron Phosphate batteries. DO
NOT ATTEMPT TO CHARGE any other type of Lithium battery

1. Solar panel cable
2. Controller input
3. Controller output cable
4a. O-01 Permanent battery lead
4b. O-04 Battery clips 5. Battery

This will also be a video with the upcoming DUO solars

MONITOR MODE - When the solar panel stops delivering power (sun has gone down in the evening or cloud covers sun) the
OptiMate Solar DUO controller changes to BATTERY MONITOR mode and will now indicate battery charge level every 3 seconds.
LED 2, 3, 4 or 5 indicate battery charge level.

CHARGE MODE - LED #1 lights if the solar panel can deliver charge. LED #1 flashes when charge current is delivered to the
battery. Speed of flashing corresponds to current delivered i.e. fast means high current, slow means low current (cloudy
conditions or battery is not accepting high current).
LED 2, 3, 4 or 5 indicate charge progress whilst CHARGE LED #1 is flashing. If no battery is connected only LED #1 turns on.

If the battery is sufficiently charged, LED #4 or 5 will immediately light together with LED #1 (flashing).

If the battery needs further charging LED #2 or LED #3 will light together with LED #1 (flashing).