Product Features
Temperature compensated for optimum charge voltage
Automatically switches from full charge to float charging mode for top performance
Reverse polarity protection to ensure user safety
10-year warranty
Safe operation
Product Description
BatteryTender Plus is the most advanced charger/maintainer on the market specially designed for today's sealed lead acid batteries. The BT Plus uses micro-processor technology in a four stage charging profile to charge, improve, and float your battery so it is ready when your are. Constant current charging and regulated voltage patterns allow the battery to be recharged fully and safely without the fear of overcharging.
Temperature compensated for optimum charge voltage
Automatically switches from full charge to float charging mode for top performance
Reverse polarity protection to ensure user safety
10-year warranty
Safe operation
Product Description
BatteryTender Plus is the most advanced charger/maintainer on the market specially designed for today's sealed lead acid batteries. The BT Plus uses micro-processor technology in a four stage charging profile to charge, improve, and float your battery so it is ready when your are. Constant current charging and regulated voltage patterns allow the battery to be recharged fully and safely without the fear of overcharging.
Most Helpful Customer Reviews
You've seen all the other reviews, I won't be able to add anything that hasn't been said already about the great job this does topping off your batteries. Like others, I've been burned by the failing batteries of less used vehicles and got this to help the situation, after seeing how good it works I bought an additional unit. I was worried about how much current the units drew from the wall while idling as that could potentially drive up the cost and negate the benefits of maintaining your batteries so I conducted a little test.
My test has a group size of 1 so it doesn't take in to consideration larger or smaller battery sizes, but here are my results:
My motorcycle's stock battery is a yb18l-a and is rated at 270 cca @0 degrees.
Put the tender on last night and the tender drew 30 watts from the wall.
When it went to 80% it was down to 23 watts.
This morning it was fully charged and my meter was toggling between 2 and 3 watts.
What this means is that it draws about 1/2 the current of a 5 watt nightlight. Most of us use many times that amount leaving unattended wall-warts plugged in and any remote-control device draws at least that much to operate it's remote on/off circuit.
This tender won't add anything to your electric bill if you just unplug some other item that draws about the same. A simplistic approach, but we're talking about 2 to 3 watts.
I'm sure someone who's good with the whole amp/hours thing could figure out exactly how much it costs per month at that rate but I'm not gonna worry about it.
I bought an extra battery connector and the 25' extension cable which both had free shipping. I used to enjoy making these kinds of things but these have nice molded ends with rubber dust covers and you can't beat the free shipping so it's worth the money.
You've seen all the other reviews, I won't be able to add anything that hasn't been said already about the great job this does topping off your batteries. Like others, I've been burned by the failing batteries of less used vehicles and got this to help the situation, after seeing how good it works I bought an additional unit. I was worried about how much current the units drew from the wall while idling as that could potentially drive up the cost and negate the benefits of maintaining your batteries so I conducted a little test.
My test has a group size of 1 so it doesn't take in to consideration larger or smaller battery sizes, but here are my results:
My motorcycle's stock battery is a yb18l-a and is rated at 270 cca @0 degrees.
Put the tender on last night and the tender drew 30 watts from the wall.
When it went to 80% it was down to 23 watts.
This morning it was fully charged and my meter was toggling between 2 and 3 watts.
What this means is that it draws about 1/2 the current of a 5 watt nightlight. Most of us use many times that amount leaving unattended wall-warts plugged in and any remote-control device draws at least that much to operate it's remote on/off circuit.
This tender won't add anything to your electric bill if you just unplug some other item that draws about the same. A simplistic approach, but we're talking about 2 to 3 watts.
I'm sure someone who's good with the whole amp/hours thing could figure out exactly how much it costs per month at that rate but I'm not gonna worry about it.
I bought an extra battery connector and the 25' extension cable which both had free shipping. I used to enjoy making these kinds of things but these have nice molded ends with rubber dust covers and you can't beat the free shipping so it's worth the money.
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