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0
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1answer
53 views

Does a leaking cell destroy the other cells in the same battery?

I have a device I have never used before. Unfortunately I found out that one of the device's 3 LR44 cells was leaking white potassium carbonate. See my sketchy illustration below. I have only 2 new ...
0
votes
1answer
206 views

Ryobi 18v. Lithium says fully charged but no energy

Recently I was using a Ryobi cordless drill to work on some drainage equipment. Unfortunately it caused a spill and a little water got on me and the drill. I did not think it was a lot of water (and I ...
1
vote
2answers
258 views

Which batteries are compatible with the DeWalt DW9107?

I have a DeWalt battery charger model# DW9107. Which batteries can I charge in it? It says 14.4volts I have a DeWalt hammer drill model# DCD950B. Will the battery for it, DC9096 work with my ...
8
votes
4answers
21k views

What should I do with leftover sulfuric acid from a sump pump battery backup?

In our new house, we found that a previous owner installed a sump pump battery backup unit, which is nice. The battery in the system is like a car battery, but it's the kind where you initially add ...
0
votes
1answer
46 views

Making a Solar Power Battery Backup Unit

Ok, so this is a small battery backup unit. I want to just start small and see if I can get the idea working. I'll buy this 20 watt solar panel with charge control ...
18
votes
6answers
19k views

How to prevent batteries leaking out in devices?

Is there a common method of preventing batteries from leaking out and destroying the device? Why does this happen in the first place? I have laid another head lamp to waste because it was sitting in ...
1
vote
2answers
82 views

Solar panels and batteries as primary, grid as backup with auto transfer switch [closed]

I've been toying around with this idea and I'm not sure if it's feasible. I live in an area where the power company has recently adjusted rates to make grid-tied net metering rooftop solar ...
0
votes
0answers
323 views

Wiring a Tesla Powerwall into an Existing Solar Install

I've been looking at the cost and feasibility of augmenting my existing 5kWh solar install with battery-backed storage to shift usage of the solar power that I generate to more useful times of the ...
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votes
0answers
70 views

Honeywell Alarm Panel - Change Battery

I can't find the model number from the Honeywell TouchCenter alarm panel. (pictures attached). It was beeping for Battery change but I can't find a way to change the battery. Now when I open the door ...
3
votes
2answers
2k views

What could cause a battery hedge trimmer to have white smoke come out of it?

For the most part my hedge trimmer was doing a really great job. I did have a little trouble with the thicker stems, so I would swing the trimmer at the stems while cutting, which helped. However, a ...
0
votes
1answer
496 views

Can you charge Bosch 18V batteries from your car?

I'm trying to find out if Bosch or someone else makes a charger for their 18V cordless tools that can charge from the cigarette lighter (actually from a solar panel that has a 12V cigarette lighter ...
3
votes
2answers
178 views

Solar backup system, advice needed

Here in South Africa we are experiencing frequent power blackouts, as I work from home on a small property (generators not an option) this is rather disruptive to my work as a programmer. So bearing ...
1
vote
1answer
222 views

Why does the Tesla PowerWall operate at 350v - 450v?

According to the Tesla website the new Powerwall operates at 350 to 450 volts? Why such a high voltage when most solar battery banks operate at 48V?
0
votes
1answer
99 views

Solar charge controller wiring

I have the proper polarities connected from the panel and battery to the controller. Above is a photo of the HQRP charge controller wired to a 30watt 24v solar panel and this 24v battery: I ...
1
vote
1answer
2k views

What does it mean if my Watchdog backup sump is flashing “Add Distilled Water” even with brand new battery?

I just went through the laborious process of setting up a replacement backup battery for the Basement Watchdog backup sump pump system. I had to pour the battery acid in myself. Now in addition to ...
1
vote
1answer
121 views

Can I use Eneloop batteries in my thermostat?

I have this LuxPro thermostat http://www.luxproproducts.com/pdfs/spec_pdfs/PSD010Bc_NL_ENG_Manual.pdf There's a warning in the very first section that says to use only Duracell or Energizer Alkaline ...
0
votes
1answer
158 views

Verizon FIOS battery warning beep [closed]

My Verizon FIOS system has a back-up battery to keep the phone running in the event of a power failure. This battery is approaching the end of its life and makes a "BEEP" every five minutes or so. I ...
0
votes
1answer
180 views

Wired vs Battery Impact Wrench

I was considering the purchase of a 1/2" electric impact wrench. The first application is to change out an anode rod for an electric water heater. I was looking at some online, and the torque given ...
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vote
4answers
6k views

Replacing battery in backup sump pump

I have a PHCC 2400 battery backup sump pump. It started beeping today and the controller light indicated that the battery terminals were corroded or that the battery was bad. I opened up the case ...
0
votes
1answer
2k views

Powering 5 foot section of LED flexible light strip with AA batteries

I need to light traveling show cases with no AC power available. How do I hook up LED flexible light strips to AA batteries. (I bought 20 led per foot reels and 40 led per foot reels. Single color, ...
1
vote
1answer
1k views

How can i set up a Solar Panel to charge a 12v DC car battery and power a Raspberry Pi?

I've pulled together a few spare parts that i've had laying about for ages now and I finally have a bit of time to try do something with them. I've got a solar panel which puts out ~22vDC @ ~2Amps ...
3
votes
2answers
122 views

Why have cordless tools changed the battery style?

I was looking for replacement batteries for my cordless tools (drill, light, sander) and have been unable to find any. My current battery is the style with a neck that inserts into the tool, but all ...
4
votes
2answers
696 views

How can I use cordless drill batteries in projects?

I found this project on Make for an automatic ball thrower for your dog, and am in the process of wrapping it up. For power, I'm using a cordless drill battery. (Specifically, a Ryobi lithium one+ ...
4
votes
3answers
2k views

Will neodymium magnets harm my power drill battery?

I glued some magnets onto my power drill battery to use for storing drill bits on - but will the magnets affect the battery life?
4
votes
3answers
2k views

Should I leave NiCad rechargeable batteries charging when not in use for long periods?

I've got an Black & Decker electric trimmer that gets used about 2 months out of the year. It uses a NiCd battery pack. For optimum battery life, should I leave it plugged in all year when not in ...