Originally Posted by DSjunky
I have the - available everywhere - Battery Tender Jr. by Deltran. Works fine. It will keep a battery at the same level, but it does not 'charge' a dead or low battery. If you have a half charged battery and plug it in; Six months later - you'll still have a half charged battery. FYI.... Most bat tenders only keep a battery at the same level, they don't charge up any more than the battery's current state.
I have to differ with your description........the BT Jr. WILL charge a battery, albeit, slowly. This from the MAW Online site:
Battery Tender Junior
Full automatic two-stage lead acid battery charger. Lightweight, compact size. Trickle charger with a brain assures batteries are maintained after charging. Ideal for all lead-acid, sealed maintenance free and gel cell batteries. After full 14.4 VDC charge is reached, converts to float charger and moniters battery at 13.2 volts. When voltage drops below 12.6 VDC, charger resumes charging back to 14.4 VDC. Two-color LED indicator. Spark-proof; reverse polarity protected. 12' output cord and quick-connect harness. Battery Tender(R) Jr. comes with a set of quick disconnect clamps and rings.
The BT's will also charge the AGM (glass matt) and sealed batteries, no probs.
I have the BT Plus ($37.95 at MAW, http://www.mawonline.com/batteryt.htm
), in fact, I have two of them.......one is in my garage on my 1800VTX and the other is on the KLR in my shop. The VTX battery is now 4 yrs. old and working fine. BTW, I also use the one in the shop on my lawn tractor battery...it DOES charge it. At 1.25 amp charging rate, it takes a long time to charge a really low battery, but, it won't boil one dry like a heavier charger that is not automatic.