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MotoMaster Simple Series 0.8A Battery Charger & Maintainer $27.99 (25% Off)

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Dec 28, 2007
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Alberta

[Canadian Tire] MotoMaster Simple Series 0.8A Battery Charger & Maintainer $27.99 (25% Off)

Car parked because of covid, this battery maintainer may help from battery going dead.
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Oct 24, 2004
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Shows $37.99
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Jun 23, 2007
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St. Albert, AB
Shows $27.99 for me in Alberta. Regional sale?
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Dec 17, 2001
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St-Fabien de Panet, …
Perfect for maintaining my lawn tractor battery over the winter.
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Aug 10, 2003
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Winnipeg
I have a similar one connected for months at a time. I added a fuse to the positive lead coming off the battery in case of a short circuit. The car is in our garage so I put a cardboard box on the car hood to remind us the battery maintainer is plugged in- so we don't drive off with it still connected.
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Oct 24, 2004
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stony wrote: Shows $27.99 for me in Alberta. Regional sale?
Yup. Changed to Calgary and it shows $28
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Feb 13, 2008
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London
Ontario Flyer has it starting tomorrow.
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careh wrote: I have a similar one connected for months at a time. I added a fuse to the positive lead coming off the battery in case of a short circuit. The car is in our garage so I put a cardboard box on the car hood to remind us the battery maintainer is plugged in- so we don't drive off with it still connected.
Mine is usually parked in the garage also, I usually just leave the hood up.
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Jul 7, 2009
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0.8A is pretty low ... may work as a maintainer if your battery is in good health but for that kinda $$ I'd rather get a more powerful battery maintainer from Amazon.

Something like the Gooloo 6V/12V 6A battery charger + Maintainer from Amazon, it's ~ $35.
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Jan 27, 2006
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If you are going to connect something like this for weeks at a time over Winter, may I suggest pairing this with an appliance time set to turn on for a few hours a week? There have been reports of similar devices when connected to the battery fail in the sense that they fail to detect that the battery is full and end up overcharging the battery. By placing a weekly appliance/light timer on it, the charger is off most of the time limiting the possibility of overcharging.
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Jan 27, 2006
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number17 wrote: 0.8A is pretty low ... may work as a maintainer if your battery is in good health but for that kinda $$ I'd rather get a more powerful battery maintainer from Amazon.

Something like the Gooloo 6V/12V 6A battery charger + Maintainer from Amazon, it's ~ $35.
I wouldn't trust that at all to be left charging by itself for weeks as a maintainer supposed to do. 0.8A is fine. Another RFD'er got the Battery Tender Jr which is 0.75A and was able to fully charge their battery over a period of a few days which is exactly what a maintainer is supposed to do.
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Apr 18, 2005
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craftsman wrote: If you are going to connect something like this for weeks at a time over Winter, may I suggest pairing this with an appliance time set to turn on for a few hours a week? There have been reports of similar devices when connected to the battery fail in the sense that they fail to detect that the battery is full and end up overcharging the battery. By placing a weekly appliance/light timer on it, the charger is off most of the time limiting the possibility of overcharging.
I am doing this with a Kasa smart plug.
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craftsman wrote: I wouldn't trust that at all to be left charging by itself for weeks as a maintainer supposed to do. 0.8A is fine. Another RFD'er got the Battery Tender Jr which is 0.75A and was able to fully charge their battery over a period of a few days which is exactly what a maintainer is supposed to do.
I think there are a couple things you can do. Some ppl put a timer to it, so that it only turns on for say, 3 hours in a week, that makes sure you won't overcharge your battery (or worse, cause fire hazard or what not)

But the other thing is, these battery maintainer are all 'smart' chargers that are designed to be left hooked up to a battery all winter, and not only it shouldn't overcharge your battery but moreover, it is supposed to go through different stages of charging cycle to keep your battery healthy. Whether you trust these smart chargers to do that is another thing, but at least reviews seem to indicate ppl have left it hooked up throughout Canadian winters without any problem.
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Dec 20, 2004
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craftsman wrote: I wouldn't trust that at all to be left charging by itself for weeks as a maintainer supposed to do. 0.8A is fine. Another RFD'er got the Battery Tender Jr which is 0.75A and was able to fully charge their battery over a period of a few days which is exactly what a maintainer is supposed to do.
I have a Battery Tender Jr plugged into my 1972 Buick's battery all the time (no timer), and it keeps it topped up without an issue. less than an Amp is not going to damage batteries that are typically 25Ah+ (and those are on the small side).

I used to use my CTEK 4.3 for float charge, but when I inherited the Battery Tender Jr, I use that for top up, and keep my CTEK free for more top-up/charging duties.
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number17 wrote: I think there are a couple things you can do. Some ppl put a timer to it, so that it only turns on for say, 3 hours in a week, that makes sure you won't overcharge your battery (or worse, cause fire hazard or what not)
I'm actually the guy that is telling everyone to do just that for months.
number17 wrote: But the other thing is, these battery maintainer are all 'smart' chargers that are designed to be left hooked up to a battery all winter, and not only it shouldn't overcharge your battery but moreover, it is supposed to go through different stages of charging cycle to keep your battery healthy. Whether you trust these smart chargers to do that is another thing, but at least reviews seem to indicate ppl have left it hooked up throughout Canadian winters without any problem.
It's not a question of 'smart' chargers or not in this case but rather if GOOLOO is actually a brand that isn't basically crap. I consider brands like GOOLOO crap brands. If you are going to depend on a smart charger being smart, then get a better brand that can be depended on.
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Emporium wrote: I have a Battery Tender Jr plugged into my 1972 Buick's battery all the time (no timer), and it keeps it topped up without an issue. less than an Amp is not going to damage batteries that are typically 25Ah+ (and those are on the small side).

I used to use my CTEK 4.3 for float charge, but when I inherited the Battery Tender Jr, I use that for top up, and keep my CTEK free for more top-up/charging duties.
I'm just going by some of the various reports out there on the 'net that the various smart chargers when left in maintenance mode go bad. Yes, it's not supposed to happen but I consider it cheap insurnance that things will work out in the end.
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craftsman wrote: ...
It's not a question of 'smart' chargers or not in this case but rather if GOOLOO is actually a brand that isn't basically crap. I consider brands like GOOLOO crap brands. If you are going to depend on a smart charger being smart, then get a better brand that can be depended on.
Absolutely. If you are going to invest in a smart charger, spend the money to get a good one. Cutting corners on a smart charger are not worth it. The first time it malfunctions (and assuming it doesn't catch on fire), it will destroy your battery. So the savings you tried to make are all useless. Never heard of GOOLOO :) I bought a CTEK, since that is the one many OEMs, including Porsche, Mercedes, etc... trust and provide with many of their high end vehicles. YEs you pay a little more, but they will last a lifetime. Actually putting something like a CTEK on a timer is counter productive. Every time it starts it will go through all it's stages again before falling back into the final mode whcih is pulse charge (not float). The modes are Desulfation, soft start, bulk charge, Absorption, Analysis... up to getting back into float maintenance, where it will remain there for up to 10 days (this is where most chargers stop).. The CTEK will then switch to Pulse maintenance for the long term. Nice explanation here.
craftsman wrote: I'm just going by some of the various reports out there on the 'net that the various smart chargers when left in maintenance mode go bad. Yes, it's not supposed to happen but I consider it cheap insurnance that things will work out in the end.
I've heard.. And I did learn the hard way many ages ago, when I bought a cheap "smart charger". There was nothing smart about it. And I thought I was being smart by putting it on a fancy timer, where once a week, it would come on for 6hrs. and that's it. Figured it would be plenty to keep the battery charged up. Well, it was enough to keep it charged up.. Unfortunately too much. The "smartness" of the unit turned out the be just a dumb timed cycle through phases, and barely any analysis. So turning it on, it would go into a bulk charge mode and since battery was nearly full, over the course of the winter storage, my battery dried up :) I guess that occasional smell of sulfur was not from the garage drain, but rather the acid venting out :( After that I bought my CTEK 4.3 (been over 15 yrs now), and until recently (when I switched to the tender jr), I have used it year round on my 72 buick, and it has not failed me yet. In the summer I used the Tender Jr, since I do use the car quite often. But in the winter where it stays pretty dormant, it goes back onto the CTEK.
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Emporium wrote: Absolutely. If you are going to invest in a smart charger, spend the money to get a good one. Cutting corners on a smart charger are not worth it. The first time it malfunctions (and assuming it doesn't catch on fire), it will destroy your battery. So the savings you tried to make are all useless. Never heard of GOOLOO :) I bought a CTEK, since that is the one many OEMs, including Porsche, Mercedes, etc... trust and provide with many of their high end vehicles. YEs you pay a little more, but they will last a lifetime. Actually putting something like a CTEK on a timer is counter productive. Every time it starts it will go through all it's stages again before falling back into the final mode whcih is pulse charge (not float). The modes are Desulfation, soft start, bulk charge, Absorption, Analysis... up to getting back into float maintenance, where it will remain there for up to 10 days (this is where most chargers stop).. The CTEK will then switch to Pulse maintenance for the long term. Nice explanation here.



I've heard.. And I did learn the hard way many ages ago, when I bought a cheap "smart charger". There was nothing smart about it. And I thought I was being smart by putting it on a fancy timer, where once a week, it would come on for 6hrs. and that's it. Figured it would be plenty to keep the battery charged up. Well, it was enough to keep it charged up.. Unfortunately too much. The "smartness" of the unit turned out the be just a dumb timed cycle through phases, and barely any analysis. So turning it on, it would go into a bulk charge mode and since battery was nearly full, over the course of the winter storage, my battery dried up :) I guess that occasional smell of sulfur was not from the garage drain, but rather the acid venting out :( After that I bought my CTEK 4.3 (been over 15 yrs now), and until recently (when I switched to the tender jr), I have used it year round on my 72 buick, and it has not failed me yet. In the summer I used the Tender Jr, since I do use the car quite often. But in the winter where it stays pretty dormant, it goes back onto the CTEK.
Yes I get what you are saying, and I completely agree plugging a crap charger into the battery can damage the battery, the only thing is I just dunno if gooloo is a 'crap brand'.

I've done some homework and it seems like there are plenty of real users who have been using the same charger to charge their car throughout winter storage for years with no problem. When it comes to build quality, the Gooloo charger also doesn't feel any 'cheaper' than a Battery tender Jr. The battery tender Jr is actually a pretty 'cheap' device with plastic casing, no fan, no cooling. And I really dunno if a $49 battery tender Jr has that much more 'logic' and 'smart' in it than a $39 Gooloo charger.
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Oct 13, 2016
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Anyone know if this will be good for a motorcycle battery over the winter?
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Emporium wrote: Actually putting something like a CTEK on a timer is counter productive. Every time it starts it will go through all it's stages again before falling back into the final mode whcih is pulse charge (not float). The modes are Desulfation, soft start, bulk charge, Absorption, Analysis... up to getting back into float maintenance, where it will remain there for up to 10 days (this is where most chargers stop).. The CTEK will then switch to Pulse maintenance for the long term. Nice explanation here.
It's not really counter-productive at all. The CTEK will just run their various test and if the battery is in good shape, that only takes about 30 seconds to get to stage 4 - absorption charge. Then the CTEK may stay at stage 4 for a few hours in order to top off the battery before proceeding through stages 5, 6 and then stopping at 7.

CTEK, while a higher end charger, has had its share of failures over the years as well. Here's a thread from a car form which has a few reported failures - https://www.impactbumpers.com/forum/ind ... -failures/ - I've quoted a few noteable items below.
I was the former owner of three functioning CTEK chargers: one on the 997 (semi-permanently), one on Mrs VT's mobile (winter top ups) and a spare. I'm now down to one, two having failed over these last few months, the most recent of which was the new-at-the-time, Porsche own brand jobbie that came with the 997 just over two years ago.

Each failure looks similar - the single green light is on, either connected to the mains or the charged car battery, but nothing else is functioning.
Had this on occasions with CTecks. They sort of go into a shutdown mode. Apparently it’s a temperature issue or so I’m told and usually only on first fire up after non use. Turn on /off at mains a couple of times and it will reset....eventually.
Heard before Christmas a horror story when a guy had a ctek on his bike in the garage, failed and melted, garage on fire, bike gone, 911 requires respray
Did some Googling last evening and the failures I've been having are pretty common. Whilst the CTEK concept may be solid Swedish the build quality is as stamped on the base, pure Chinese. Cheap internals, poorly assembled. The switches go as do some of the electrical components attached to the PCB. I'll write to them as see what they have to say, you never know they may stand tall. Next time I'm in one of the German supermarkets I'll pick up a couple of theirs. For the money they seem to have a good rep.
I own two CTEKs so I'm not knocking them for the sake of knocking them but just pointing out that every brand has their issues now and again.

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