Reddit reviews Renogy 12V 100Ah Rechargeable Deep Cycle Pure Gel Battery
We found 4 Reddit comments about Renogy 12V 100Ah Rechargeable Deep Cycle Pure Gel Battery. Here are the top ones, ranked by their Reddit score.
Long Service Life: Heavy duty lead-calcium grids ensure mild corrosion and enable a long designed service life of 10 years’ standby use under optimal float charge conditions and below optimal operating temperature of 25℃Patent Designed Construction: Renogy batteries are equipped with PE compound separator construction, which ensures that gel electrolyte is distributed evenly through-out the inner battery and ensures the best evenness of all parts of the battery.Triplex Sealed Construction: Valve regulated sealed construction and triplex strengthened sealing on terminals and posts prevent electrolyte leakage, and guarantee the air tight and liquid state of batteries in normal operation and prevent external air form entering battery inner.Low Self Discharge: Because of the use of lead-calcium grids alloy, Renogy batteries have low self-discharge and reliable performance. In room temperature, self-discharge ratio per month of Renogy battery is about 3% of the battery capacity.High Security: Renogy batteries are equipped with explosion-proof safety valves to prevent production of redundant gas. And the construction is designed to prevent setting fire to the internal battery in case sparkles approach. Shelf life - 9 months at 25 degree celsius.Internal Resistance: 7.1mΩ
Be CAREFUL with Vruzend. Fuse every cell. I destroyed half my garage because I thought my tiny 36 cell packs (4s6p) was safe only being charged to 14v since it should have been safe up to 16.8v. Only takes one bad cell to screw up your life. I've decided it is no longer worth the effort to harvest 18650 batteries. The Renogy 100ah 12v ( https://amzn.to/2NO883u ) for $214 is rated for 1100 cycles at 50% depth of discharge. There's the LifePo4 version for $800 which is rated at 7000 cycles but I ain't made of that kind of money.
I'm going to have to weigh my options on that one. It would be nice to make my own connections since this is a DIY project, but want to keep it cheap as well.
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>How are you charging the 'house' battery?
I'll have to look into that. I'm not sure if the alternator charges that battery or not, but it can be charged from the generator. I won't be using either of those options if possible, my plan is to recharge it using the 100 watt portable panel since it'll mainly be used for the water pump, wifi amplifier, and lp/smoke alarms.
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>What's the gel-cell's model number and such?
It's a renogy 100aH 12v battery: https://www.amazon.com/gp/product/B01KN6QUW2/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
from the product description:
Specifications:
Cells Per Unit: 6
Voltage Per Unit: 12
Capacity: 100Ah 20hr-rate to 1.75V per cell 25℃
Weight: Approx. 67 lbs
Max. Discharge Current: 1000 A (5 sec)
Normal Operating Temperature Range:25°C±5℃
Float charging Voltage: 13.6 to 13.8 VDC/unit Average at 25℃
Recommended Maximum Charging Current: 20A
Container Material: A.B.S. UL94-HB, UL94-V0 Optional
Specification: 12.8X6.8X8.8 In.
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>Also, hooking up the solar to your house battery system is pretty easy, especially if it's 12 volts nominal. Depending on specifics there are better and worse ways to do it, but in theory it's very simple. :)
The solar battery bank will be in the storage next to the under the stairs battery, so it won't be too far. Another reason I didn't want to do this is the RV only has 1 12v outlet in the front, so everything i use will be going off the inverter anyway, and I have the 100 watt portable panel to charge the house battery for those small electrical needs mentioned above
No problem, I wish you luck with your project!
Depth of discharge is definitely important for battery longevity. The more 'shallow' your discharge cycles are with any sort of Lead Acid chemistry, the longer the battery will usually live. :)
Also, if you're going to go over ~300-400 Ah of battery storage (rated) consider making the change to a 24 volt system before you start ordering components. The reason for this is to ensure you don't end up using cables the size of your arms to carry the current you need. When you double the nominal battery bank voltage, you half the current being carried by your conductors in that circuit, thus reducing the needed wire size. It doesn't sound like you'll need to go with a 24 volt system though, as you won't really need that much storage, or that much solar.
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Remember:
Voltage x Amps = Power in Watts
Power in Watts x Hours = Energy in Watt-hours
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>What do you think of the Optima BlueTop? They are more money than most AGMs, but they claim superior number of recharges. I can get the 66Ah at Costco for $299CAD. But I'd probably need at least 3 of these.
Try something like this instead:
https://www.trojanbattery.com/solar-agm-2/
Avoid 'marine/starter' batteries like they tend to sell at Costco and auto parts stores. (Optima BlueTop included.) They're designed to be a hybrid of a 'starter battery' (for a motor) and a 'deep cycle' battery for running electrical equipment. They will not live as long as something that is designed purely for deep cycling like the Trojan Solar AGM's, or even these Renogy ones: https://www.amazon.com/Renogy-Battery-Marine-Off-grid-Applications/dp/B075RFXHYK/
EDIT:
Renogy also makes a gel-cel equivalent of that one, here:
https://www.amazon.com/Renogy-100Ah-Rechargeable-Cycle-Battery/dp/B01KN6QUW2/
EDIT 2:
By the way, there are some differences between Gel-cel lead acid and AGM lead acid batteries, but they are both non-spillable (Sealed) battery types, that come in 'true deep cycle' varieties. :)
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Easy way to tell if it's a 'hybrid' battery type (designed for use where it will start an engine at times), is to check if it has those 'automotive style' post terminals. The ones that you find on your car battery. 'Marine' batteries that have both automotive and screw termainls, like those BlueTops, are not quite ideal for use in a solar application.
This is the most popular solar set-up. Then a battery like this. You may need an inverter, too, but that depends on your needs.
Water depends entirely on you. You can get five gallon jugs that re-fill at Home Depot for $7, for example. A lot of people get water for free at gas stations or parks.
It seems like you're just getting started thinking about this. I recommend the FAQ. There's lot of good stuff in there!