16V 7.5a/12V 9.5a Rescue Charger Tester

The Optimate TM-661 12.8V 9.5A/16V 7.5A sealed lithium battery saving charger and maintainer is ideal for 12.8V/16V LiFePO4 / LFP batteries. It features a power reset that rapidly re-energizes the battery and provides stable battery support during ECU programming / troubleshooting. The fully automatic multi-step program brings the battery safely to full charge. Weatherproof battery lead & battery clip set included.

• Revive low voltage battery safely from 1 + V
• Rebalance cells for optimizational performance
• Tests the battery state of health (SOH)
• Maintenence charger capability (tests voltage very 30 minutes, will only charge if needed)
• Safe to leave on for prolonged periods of time
• Reduces risk of overcharging and prolongs life of battery

Leave something on and drain your battery? Dropping voltage too quick, due to not being properly charged? The “Oh Shit” charger: Fix it - Charge it - Test it - Maintain it

STEP 1
• Plug in Charger, select 12V/16V, connect charger.
• If reverse polarity flashes, you have the leads backwards (red = danger = positive).

STEP 2-3
• Any flashing lights means your battery was deeply discharged, Step 8 will be a 12-hour test cycle.
• Hold black button for 3 seconds, lights will turn solid and the process will continue.
• If no flashing lights, GOOD – it will carry on.

STEP 4-6
• This light will come on if the battery was deeply discharged, it will run the cells through a BMS system before beginning the charge process.
• IF the cells are damaged beyond repair, the top red light will flash.

STEP 7
• The battery was discharged to a normal state, charging will begin.

STEP 8
• Charging has completed to 16V, cells have been rebalanced and optimized.
• Once charged the testing cycle will begin. This can take anywhere from 30 minutes to 12 hours depending on how the battery presented itself in Step 2,3.

STEP 9
• After the testing period, it will show, red, yellow or green indicating SOH.
• Once it shows green you may disconnect and put battery and charger away OR leave on the charger for an extended period of time.
• It will read the voltage every 30 minutes and charge accordingly, only if needed

TUNE MODE
• Delivers a constant safe voltage to power vehicle during diagnostics or tuning sessions.