I just bought myself a 200 AMP Schumacher SE 4020 wheeled battery charger for $70 at Advanced Auto online.... here is how:
Reg. price $135.29 on sale for $109.99 minus $40 using "BIG40" or "LC123" promo code...final price $69.99 plus tax with free in store pickup (no shipping charges).
http://shop.advanceautoparts.com/we...2005____?cm_mmc=aff-_-cj-_-1225267-_-10711125
More details
Schumacher SE-4020 200/100/40/10 Amp Manual Starter and Charger is Schumacher's most popular wheeled charger. The SE-4020 is designed for shadetree mechanics and professional mechanics alike. Manual operation of the SE-4020 puts the user in control. High-output engine start assists batteries in cranking most engines under severe conditions. This fan cooled charger/starter unit is for 6 and 12 volt batteries.
Features:
• 200 amp 12 volt/100 amp 6 volt engine start for emergency starting
• 40 amp rapid charge – charges in 1/2 to 1 hour
• 10 amp fast charge – for everyday charging needs charges in 3 to 5 hours
• 1 Amp, 12 Volt slow/trickle charge rate for small batteries also maintains batteries when not in use
• Hold position on timer switch allows for continuous charging
• UL Rating: 10 amp and 40 amp continuous, 200 amp start
• 2 rotary switches for ease-of-use and accuracy
• 3-year warranty