Battery Backup Dummy
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That makes a little sense, but the UPS will monitor and charge the battery.
So,
1 Deep Cycle Battery, 1 Battery Tender and 1 Inverter = long running UPS.
Question... If you lose power then run the stove from this setup, will you be able to plug in the battery tender to keep the battery charged at the same time?
Some allow for charge and drain simultaneously. Check the box as it will vary by model, but most better ones do this.
Harvey Schneider
Minister of Fire
If you are running on battery, I assume that the AC power is out. Therefore you can't be charging the battery at that time. You can continue to run off a battery and inverter while the AC is present as long as the charger output exceeds the power consumption. I have used this technique in product design.
Woody1911a1
Feeling the Heat
Harvey Schneider
Minister of Fire
I have come to the conclusion that for my other battery backup systems (water pump, refrigerator and boiler) I do have to use a small generator to restore the batteries. I hate the noise pollution, but that is the reality of it.
I had hoped that solar would be a practical way to maintain the batteries during use, but hurricane Sandy dissuaded me of that notion. It was so overcast, here in Connecticut, that for three days the solar panel put out next to nothing.
I actually just bought an Exide battery online. It ended up to be about $190 & free shipping. It's a 200 minute reserve capacity , not sure if that's the same as 200ah though.
Now I'll get a charger. Hopefully before next Friday though because I hate the Black Friday crowds.
Harvey Schneider
Minister of Fire
Reserve Capacity (RC) is different from Ampere-hour capacity. It is the number of minutes a fully charged battery at 80 ° F will discharge 25 amps until the battery drops below 10.5 Volts. 10.5 Volts is the cutoff point at which a 12V lead acid battery is considered to be depleted.
The battery you bought has a 100 Ah capacity. The 25A x 200min /60(min/hr) =83Ah which is the 80% of total capacity that is available. Removing the last 20% of the charge in the battery would cause damage to the battery (hence the 10.5 V cutoff).
I have a harman 502 stove sentry if you are interested
I will sell it cheap. Dont need it cause i got a whole house generator
Just a thought, I had one of these battery tenders in my boat and it completely melted into my carpet. They took it back, out of warranty,after telling them it almost set my boat on fire. I rate this a "do not buy," pay more and get a name brand...
Harvey Schneider
Minister of Fire
Good to know! I'll keep a closer eye on mine. What was it doing on a carpeted surface?
I have to keep reminding myself that HF doesn't do a good job on electrical safety. I had one of their battery tools until the battery melted down while recharging. Now I buy name brand battery powered tools.
You comment made me think of adding a fuse to mine. A half Amp fuse would limit the trouble to 6W. That's enough to get pretty hot, but probably not enough to get a real meltdown. Still for the novice Electrician probably best to stay away from.
I don't think it would work as I intend because I've got the special battery backup cable for the stove.
Ok
You actually plug the stove into this unit and hook a battery to the unit. It has its own cables. So the stove is just plugged in and no cables needed.
Harvey Schneider
Minister of Fire
You are better off with the backup cable from an efficiency point of view. When on battery, you will have to light the stove manually but the stove will run much longer on battery then on battery+inverter (stove sentry), for the same size battery.
I made it through the hurricane Sandy aftermath (more than three days using battery operation) on a 100Ah battery. I did shut down the stove and clean each afternoon when the house was comfortably warm. Starting with gel starter was easy once I understood the quirks of the stove design.
I saw somewhere on the site someone talking about lighting the stove with gel. I can just see it now... POOF!.... my eyebrows gone...
Harvey I also meant to ask you with regards to that battery - is that battery ok to charge indoors, or would it give off fumes?
The starter gel doesn't poof like that. It's bascially the same stuff that food service 'sterno' can heat things are made of.
I thought maybe it was more volitale than that. I really need to get some and check it out just so that its something I've tried and have experience with.
Steve Dimmick
Member
Harvey Schneider
Minister of Fire
The sealed AGM batteries are safe to charge indoors. They should not be housed on a small container such as a box, but as long as you are not seriously overcharging them they don't out-gas. Any of the smart chargers compatible with AGM will safely charge this battery indoors.
If the gel is used in an already hot stove it will go poof, but it didn't take my eyebrows off. It was somewhat like lighting a hot alcoholic desert.
Harvey Schneider
Minister of Fire
I get starter gel at $12 for 32 oz. I couldn't find hand sanitizer that cheap. Hand sanitizer is great in a pinch, but not a bargain.
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