mmacleod
Well-Known Member
I'm finding that the battery industry as a whole is not very 'forthcoming' with prices and important info (like DoD/cycle charts) - this is of course in their interests in terms of selling us the wrong batteries more often at higher prices, but against our interests as consumers.
I am finding claims about "high cycle life" but with no data to back it up is the order of the day.
I'm finding that to even begin trying to make an educated decision on batteries is therefore taking a lot of phoning around and time etc. as they say knowledge is power so to make a good decision the more knowledge the better.
I imagine that a lot of us are phoning around in private to a few places, and then making the best guess we can, it feels like it would benefit everyone more as a whole if we shared knowledge so that we can avoid e.g. all of us hunting for the same information continuously.
So I've created a spreadsheet which I will fill with all the battery information I find as I find it.
https://docs.google.com/spreadsheets/d/1_jcc0G3LMCxcD4go9lQ0aH8WRr4y2db_MBuS0EI3Tcs/edit?usp=sharing
Disclaimer: I don't claim that the price I have for each battery is the best price in the country, it is just the best price I have found so far - depending on the battery I may or may not have looked very hard for better prices.
A few points:
1) Spreadsheet is for manufacturer specs on e.g. cycles, where I don't yet have those specs I've put '1' as a placeholder and these should be ignored - personally I am ruling out any battery for which I can't obtain at least basic manufacturer specs from somewhere.
2) As they are manufacturer specs they should be taken with a pinch of salt, arguing that sort of thing is for the forums so lets keep that in the forum, the spreadsheet is just for raw manufacturer specs.
3) I'm definitely under no pretence that one can decide which battery to buy based just on a spreadsheet, consider this a reference tool to help look facts up in making your decision, not a definitive thing.
4) I am intentionally not limiting this to just deep cycle, as people may find other batteries useful for other scenarios (even if it is e.g. for things other than solar power), they may find that a 200Ah battery that they can discharge to 10% works out better value for money than a 30Ah battery that they can discharge to 90%, or whatever else, so the more batteries the better. No limits on technology, type etc.
Though please lets keep this to batteries 10Ah and over and not go into e.g. AA batteries.
5) Make sure to cross check the actual model numbers - some manufacturers (e.g. CSB) may have several 100Ah batteries in different ranges, people tend to just sell these as "CSB 100Ah" batteries, which can be somewhat misleading.
If you are doing your own research you may have more info on batteries where I am missing info, or just e.g. spec sheets I am missing, better pricing or whatever. Please share this info, either in this thread or private message me for editing rights if you want to make more contributions.
The more people contributing the better the info we can gather...
I am finding claims about "high cycle life" but with no data to back it up is the order of the day.
I'm finding that to even begin trying to make an educated decision on batteries is therefore taking a lot of phoning around and time etc. as they say knowledge is power so to make a good decision the more knowledge the better.
I imagine that a lot of us are phoning around in private to a few places, and then making the best guess we can, it feels like it would benefit everyone more as a whole if we shared knowledge so that we can avoid e.g. all of us hunting for the same information continuously.
So I've created a spreadsheet which I will fill with all the battery information I find as I find it.
https://docs.google.com/spreadsheets/d/1_jcc0G3LMCxcD4go9lQ0aH8WRr4y2db_MBuS0EI3Tcs/edit?usp=sharing
Disclaimer: I don't claim that the price I have for each battery is the best price in the country, it is just the best price I have found so far - depending on the battery I may or may not have looked very hard for better prices.
A few points:
1) Spreadsheet is for manufacturer specs on e.g. cycles, where I don't yet have those specs I've put '1' as a placeholder and these should be ignored - personally I am ruling out any battery for which I can't obtain at least basic manufacturer specs from somewhere.
2) As they are manufacturer specs they should be taken with a pinch of salt, arguing that sort of thing is for the forums so lets keep that in the forum, the spreadsheet is just for raw manufacturer specs.
3) I'm definitely under no pretence that one can decide which battery to buy based just on a spreadsheet, consider this a reference tool to help look facts up in making your decision, not a definitive thing.
4) I am intentionally not limiting this to just deep cycle, as people may find other batteries useful for other scenarios (even if it is e.g. for things other than solar power), they may find that a 200Ah battery that they can discharge to 10% works out better value for money than a 30Ah battery that they can discharge to 90%, or whatever else, so the more batteries the better. No limits on technology, type etc.
Though please lets keep this to batteries 10Ah and over and not go into e.g. AA batteries.
5) Make sure to cross check the actual model numbers - some manufacturers (e.g. CSB) may have several 100Ah batteries in different ranges, people tend to just sell these as "CSB 100Ah" batteries, which can be somewhat misleading.
If you are doing your own research you may have more info on batteries where I am missing info, or just e.g. spec sheets I am missing, better pricing or whatever. Please share this info, either in this thread or private message me for editing rights if you want to make more contributions.
The more people contributing the better the info we can gather...
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Might try contact them for more info, if they are claiming it is deep cycle then surely they must have some specs on it.