Lead Crystal Batteries
Submitted: Tuesday, Nov 21, 2017 at 23:49
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Grant Tas
Hi
Just wondering if anyone has used these batteries by Betta batteries
Any comments would be appreciated
Currently using 3 AGM 120 amp Century in caravan with 25 amp Ctek charger and 30 amp prostar reg (480 watts solar)
Thanks in advance
Grant
Reply By: Member - Tony H (touring oz) - Wednesday, Nov 22, 2017 at 10:03
Wednesday, Nov 22, 2017 at 10:03
Hi Grant,
I got all excited when I first heard about Lead Crystal, but after doing research found out they are common garden variety AGM’s.....name change is just a marketing ploy.
Can I suggest a 25amp charger is far to small to charge three 120amp batteries,
Suggest a bare minimum 40amp preferably 60amp.
Consider also fitting a dc to dc charger to the van (keeping the solar regulator seperate/independent so in the event of a failure of a charger/regulator you have a backup) so you can get more into the batteries whilst towing.
Good luck, stay safe.
Tony
AnswerID:
615150
Follow Up By: RMD - Wednesday, Nov 22, 2017 at 11:39
Wednesday, Nov 22, 2017 at 11:39
Lead Crystal was what some homewares were made of. Women liked Lead Crystal because it was a bit exclusive.
Didn't know you could have Lead crystal in a battery. BETTA batteries say they are the only ones making these batteries and claim they can be taken down to 0 volts too.
If any good, all the battery manufacturers would be selling them but perhaps they haven't discovered what BETTA has found.
FollowupID:
885981
Follow Up By: Alloy c/t - Wednesday, Nov 22, 2017 at 14:59
Wednesday, Nov 22, 2017 at 14:59
30 seconds of research shows that a lead crystal battery is made using lead crystal powder to hold the electrolyte in
suspension, an AGM battery uses glass matting to hold the electrolyte ,ergo Absorbed Glass Matt / AGM ... 2 different systems so not at all just a 'new' name for an AGM..or a 'marketing ploy' .....
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Follow Up By: Member - silkwood - Friday, Nov 24, 2017 at 17:33
Friday, Nov 24, 2017 at 17:33
What research (I've looked for documentation- other than from sellers I can't find any reputable references)?. And what, exactly, is "Lead Crystal Powder"?
Not being funny, simply cannot find decent documentation.
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Follow Up By: Member - Tony H (touring oz) - Friday, Nov 24, 2017 at 19:51
Friday, Nov 24, 2017 at 19:51
Hi
Silkwood,
As I said/stated earlier research also general enquiring, revealed that Lead Crystal is essentially NO different to AGM in chemistry VERY slight difference in manufacturing but still an AGM battery!
‘Lead Crystal’ is just advertising blurb.....to my way of thinking and understanding!
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Reply By: Member - Racey - Wednesday, Nov 22, 2017 at 10:33
Wednesday, Nov 22, 2017 at 10:33
I agree with Tony. Charge rate 20% of A/H rating is the norm.
AnswerID:
615152
Follow Up By: Sigmund - Wednesday, Nov 22, 2017 at 15:16
Wednesday, Nov 22, 2017 at 15:16
10-15% is enough. 20% regularly will do damage in the bulk stage.
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Follow Up By: Gronk - Wednesday, Nov 22, 2017 at 18:48
Wednesday, Nov 22, 2017 at 18:48
10% is the long regarded norm.
A 25A charger for 2 or 3 batts is perfectly OK. Unless it's a rare time when using a genny, so recharge time could be a lot shorter, a 25A charger will easily recharge 3 batts overnight.
My 25A Projecta has been charging the 3 X 120a/h AGM's for 5 1/2 yrs perfectly OK..
FollowupID:
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Follow Up By: The Bantam - Tuesday, Nov 28, 2017 at 08:56
Tuesday, Nov 28, 2017 at 08:56
A 25 amp charger will easily charge 3 x 120 AH batteries over night ??????
Sorry ..... what state of charge are the batteries in at the beginning of the charge time and what condition are those batteries in.
Considering charge tapering and other factors, a 25 amp charger WILL NOT fully recharge 320Ah of any lead acid batteries from 50% SOC to fully charged ( however you measure that) in 10 hours.
If the cycle depth is 75% ... not even close.
sorry
cheers
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Reply By: Member - Racey - Thursday, Nov 23, 2017 at 09:49
Thursday, Nov 23, 2017 at 09:49
Charging details from Century
Charging info
AnswerID:
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Follow Up By: Gronk - Thursday, Nov 23, 2017 at 22:43
Thursday, Nov 23, 2017 at 22:43
While that website says for an Agm 20%, that by no means infers anything less than 20% is not big enough.
300a/h can be charged with a 10A charger. Might take longer than a 25A, but usually at
home, time isn't a problem. Even at a caravan park it's not usually a problem either.
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