Reddit reviews Mighty Max Battery ML18-12 - 12V 18AH CB19-12 SLA AGM Rechargeable Deep Cycle Replacement Battery Brand Product
We found 5 Reddit comments about Mighty Max Battery ML18-12 - 12V 18AH CB19-12 SLA AGM Rechargeable Deep Cycle Replacement Battery Brand Product. Here are the top ones, ranked by their Reddit score.
ML18-12 SLA is a 12V 18AH Sealed Lead Acid (SLA) rechargeable maintenance free battery.Dimensions: 7.13 inches x 3.01 inches x 6.57 inches. Terminal: Nut and Bolt. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.Backed by a 30 day refund policy and full 1 year warranty.
I just bought, and installed an exhaust fan in the back of my pickup. It works great, and I'm stoked to have power in the back now. It wasn't very difficult to figure out.
I bought this, this, this, this, and this fan. It set me back about $350, but I went with a larger, more powerful solar panel. You'll need some 10 gage wire and crimp connections. Home depot has all those parts.
Here's what it looks like.
How about a separate battery bank?
I have this
and two of these in parallel and enclosed in a fishing tackle box (the ISOpwr is mounted to the outside of the tackle box). This portable setup can be removed if needed, but basically stays put in the car to power my Icom dual bander. I've left the Icom on overnight accidentally, and because it's separate from the car battery, have not had issues with flat starting batteries. It charges when the engine runs. No noise, I've run HF (Yeasu FT-857) at 100 watts, engine off, no problems.
I chose this setup to be both my mobile power supply and a removable emergency battery.
Amazon has mighty max 18-22ah for less than $45 they are as small as I've even been bothered to look at
https://www.amazon.com/ML18-12-CB19-12-Rechargeable-Replacement-Battery/dp/B00K8E4WAW/ref=mp_s_a_1_3?ie=UTF8&qid=1524707694&sr=8-3&pi=AC_SX236_SY340_FMwebp_QL65&keywords=18+ah+agm+battery&dpPl=1&dpID=51YkSt6qH0L&ref=plSrch
So noted. Fortunately weight isn't too much of an issue, since this will all be in a framed backpack.
So, if I'm reading this right, this device: http://amzn.com/B0143NF1YO , has the same power storage as this device: http://amzn.com/B00K8E4WAW . Is that correct?
The small device only puts out 85 watts of power, but has 18 amp hours. So doing the math again; pulling down 40 watts (high estimate of power usage), at 120 volts...
Adjust from 18 amp hours to 1.8 amp hours from converting 12 volt to 120 volt. Amps is equal to watts / volts, so 40 watts into 120 volts is 0.33. So .33 into 1.8 is 5.45. Reduce by 30% to account for inverter, we get 3.6 hours. Is this right?
I'll make an attempt at specifying a system for you:
This will be sized PER FAN, I'm using a Noctua NF-F12 @ 0.05A & 12V which equates to 0.6 Amps. This is 14.4AH.
Safe depth of discharge (DOD) on a deep cycle battery, generalizing here based on battery chemistry, it about 80% with a longer life at 50% DOD. This 18AH battery will last a few years. Because of the Ringers you should double this battery size per fan.
To charge the battery get a MPPT charger rated for your solar panel amps. The MPPT charger has a minor efficiency loss so add 20% to the amps needed. You need 216 WH of energy (12V*18AH) divided over 5 hours of peak sun and you need about a 50W solar panel.
For cloudy days I suggest doubling your solar panel size.
Ringers:
Snow, Clouds, Cold, Heat, Dust, # cycles, shading, winter sun height, obstructions