Designed to maintain maximum performance from your sealed lead acid batteries. Dual stage output and regulated current control to insure that no damage occurs while battery remains on charger. "Fast-charge" cycle of 15Vdc, 500mA brings battery to fully charged state at which point the float-charge takes over, maintaining the battery at a constant 13.8 Vdc. LED indicators; red indicates fast-charge, green indicates power-on and float-charge. Screw terminals allow user to attach desired cable and connector. UL.
Customer Comments
A customer from ALISO VIEJO, CA US
Reverse Polarity Protection - reasons for it not b
Providing reverse polarity protection (RVP) in a charger sacrifices regulation and voltage compensation - which are both necessary. To add reverse polarity protection, buy a small enclosure, big enough for a fuseholder and a 4 amp, 50 PIV diode. Connect the diode directly across the charger output. The cathode (band) of the diode is conneced to the + charger output, and the anode (unmarked) end to the - charger output. Now, connect the + battery clip lead in series with the fuseholder, and the - battery lead connected to the - charger output. Connect the other fuseholder terminal to the + charger output. Use a 1 amp, slow blow fuse in the fusholder. Under normal use, the battery charges through the fuse, which is sized appropriately, and no current flows throuth the diode. If you should reverse the charger cables to the battery, the diode is forward biased, the fuse blows, and the charger is fine.
Even with this mod, CHECK THE POLARITY OF THE BATTERY CLIPS - to permit charging.
A customer from Delaware
This charger good for Black & Decker battery whip
My B & D battery grass trimmer #CSI-1000 wasn's working. I found that the battery is easily replacable for $13, a 12v 7A gel cell sealed unit. This charger is nearly identical to theirs, and same specs for $12.75. Now I need to find a replacement motor for less than B & D price of $47, which should be $20. The whole whip costs $58, on sale. It has worked fine for 3 years, and really just needed new brushes.
A customer from OXFORD, MS US
Inexpensive reverse polarity repair
If you do accidentally kill one of these by reversing the connections to the battery, you may be able to fix it inexpensively. To open the case you'll need a tri-wing bit. These can be found in in many "security" bit sets for cordless drills, e.g. All Electronics CAT # BT-33. When I opened my dead charger, I found that the LM-7812 three terminal regulator had blown up. The other components were fine, so I removed the remains of the 7812 and soldered in a new one. That's all it took to fix it. All Electronics sells the 7812 regulator as CAT # 7812T for 50 cents each.
A customer from KY
(CAT# BC-100) I believe to be unsafe.
Hello:
I am writing to you because I think you should know that the
battery charger you sell (CAT# BC-100) I believe to be unsafe. I
purchased one of these battery chargers from you and was using it to
charge a sealed lead acid battery. I left it hooked up for quite a while
to let it fully charge the battery and switch into float charge. When I
checked on the battery it was overcharged to the extent that you could
hear it bubbling inside the battery. I quickly disconnected it and it
took quite a while until the battery voltage dropped to a normal level.
(I set it outside overnight in case it blew up.) I feel fortunate that
the battery did not explode. I don't think I did anything wrong but if I
recall correctly the charger did not come with a manual or user guide of
any sort.
So I decided I would warn you before somebody gets hurt with one of
these chargers. Thank you very much.
Again, the charger I am referring to is listed in your catalog on Page
37 as CAT# BC-100.
A customer from san francisco bay area
less than pleased
I have some small 12v lead acid batteries that I pulled from a UPS. I bought two of these chargers. The first one didn't work at all and the second one seems to sometimes maybe work.
I'm back to a standard 6amp charger - which I can only run for 30 minutes
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