If you are after a very good charger that does everything, go for this...
12V 16A Car Battery Charger
This fully automatic switch mode car battery charger utilises a four stage rapid charge design to optimize the life and performance of lead acid/GEL batteries. The pulsed current charging system allows batteries to accept up to 15% more energy than typical charging methods. Once the battery is charged, the unit switches to maintenance mode to keep the battery in peak condition. The charger has a number of other advanced safety features including automatic short circuit protection, anti spark circuitry, and reverse polarity detection. The charger also has a series of LEDs to indicate charging status and battery fault conditions. The ergonomic design includes a top mounted carry handle and cable storage for the battery leads and clamps. Size270(W) x 220(H) x 120(D)
Specifications:
* Spark free
* Output short circuit and reverse polarity
* Automatic thermal protection/shutdown
* Convectional cooling system
* Weather proof design
* Mains cable length 1.8M
* Battery lead length 1.9M
It can bulk charge at 6amp or 16amps, check for sulphation damage and trickle maintain any battery.
Jaycar MB3620 and at $170 cheap as chips :D
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