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Post by ianali on Jun 12, 2020 14:36:17 GMT
So batteries. Due to error I was supplied 3 months ago with 4x sealed lead acid 130 amp batteries. My last set of 4 110amp were in for over 5 years. Only changed as we noticed a definite change in performance of late. I complained to the supplier of the new ones and he refunded all the money and said keep them. I thought great result! Anyway..I’ve noticed that when we spend a day on the boat, today for instance, lots of cloud, so solar giving only a couple of amps that the voltage reading when the fridge and stereo is on the battery voltage drops within minutes from 12.7 to 12.5. This didn’t happen with previous batteries. Turn off stereo and fridge and it bounces back to 12.7 in a couple of minutes. We cannot overnight as yet so no idea what happens if fridge etc is used all night. I want to sort out what’s wrong before we go out properly when allowed(July) ? I’m thinking of leaving fridge running overnight and returning next day to see what’s what? Anyone any suggestions? Throw new batteries overboard and start again? Might some batteries behave differently and show faster, larger voltage changes but still be basically ok?
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Deleted
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Post by Deleted on Jun 12, 2020 14:39:50 GMT
It's interesting that they refunded you.
I've heard stories of rogue lead acid battery suppliers sending out the wrong things but did not realise they then refund you.
Seems to be a loss making business unless you rely on most people not going for a claim.
Or it was genuine...
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Post by ianali on Jun 12, 2020 14:57:47 GMT
It's interesting that they refunded you. I've heard stories of rogue lead acid battery suppliers sending out the wrong things but did not realise they then refund you. Seems to be a loss making business unless you rely on most people not going for a claim. Or it was genuine... They said it wasn’t worth the hassle to collect them. Was at the beginning of lockdown, so maybe that was the reason.
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Post by kris on Jun 12, 2020 15:20:16 GMT
It's interesting that they refunded you. I've heard stories of rogue lead acid battery suppliers sending out the wrong things but did not realise they then refund you. Seems to be a loss making business unless you rely on most people not going for a claim. Or it was genuine... They said it wasn’t worth the hassle to collect them. Was at the beginning of lockdown, so maybe that was the reason. Or they know something about the batteries they are not telling you.
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Post by Telemachus on Jun 12, 2020 15:21:26 GMT
So batteries. Due to error I was supplied 3 months ago with 4x sealed lead acid 130 amp batteries. My last set of 4 110amp were in for over 5 years. Only changed as we noticed a definite change in performance of late. I complained to the supplier of the new ones and he refunded all the money and said keep them. I thought great result! Anyway..I’ve noticed that when we spend a day on the boat, today for instance, lots of cloud, so solar giving only a couple of amps that the voltage reading when the fridge and stereo is on the battery voltage drops within minutes from 12.7 to 12.5. This didn’t happen with previous batteries. Turn off stereo and fridge and it bounces back to 12.7 in a couple of minutes. We cannot overnight as yet so no idea what happens if fridge etc is used all night. I want to sort out what’s wrong before we go out properly when allowed(July) ? I’m thinking of leaving fridge running overnight and returning next day to see what’s what? Anyone any suggestions? Throw new batteries overboard and start again? Might some batteries behave differently and show faster, larger voltage changes but still be basically ok? Difficult to know without being there but a couple of thoughts: 1/ Could there be a highish resistance connection somewhere between the batteries and whatever it is you are reading the voltage from, that you introduced accidentally when you fitted them? Do you get the same reduced reading if you put a multimeter directly on the battery terminals? 2/ I think all batteries need to be “run in” a bit, before full capacity / normal behaviour is achieved. When I first put our Trojans in they were absolutely weird, and pants. I had to deep cycle (as in down to 30% SoC) them a couple of times before they were even vaguely reasonable. To be fair to them, the instructions did say that maximum capacity would be reached after about 100 cycles and this was correct. Obviously Trojans are significantly different from sealed leisure batteries but even so, perhaps your new batteries just need some use? Or you could try the Basil Frawley technique and flog them with a tree branch until they agree to behave.
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Post by ianali on Jun 12, 2020 15:30:48 GMT
They said it wasn’t worth the hassle to collect them. Was at the beginning of lockdown, so maybe that was the reason. Or they know something about the batteries they are not telling you. Maybe, though to be fair I’d not complained to them about performance. Just that they weren’t what I’d ordered.
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Post by ianali on Jun 12, 2020 15:35:39 GMT
So batteries. Due to error I was supplied 3 months ago with 4x sealed lead acid 130 amp batteries. My last set of 4 110amp were in for over 5 years. Only changed as we noticed a definite change in performance of late. I complained to the supplier of the new ones and he refunded all the money and said keep them. I thought great result! Anyway..I’ve noticed that when we spend a day on the boat, today for instance, lots of cloud, so solar giving only a couple of amps that the voltage reading when the fridge and stereo is on the battery voltage drops within minutes from 12.7 to 12.5. This didn’t happen with previous batteries. Turn off stereo and fridge and it bounces back to 12.7 in a couple of minutes. We cannot overnight as yet so no idea what happens if fridge etc is used all night. I want to sort out what’s wrong before we go out properly when allowed(July) ? I’m thinking of leaving fridge running overnight and returning next day to see what’s what? Anyone any suggestions? Throw new batteries overboard and start again? Might some batteries behave differently and show faster, larger voltage changes but still be basically ok? Difficult to know without being there but a couple of thoughts: 1/ Could there be a highish resistance connection somewhere between the batteries and whatever it is you are reading the voltage from, that you introduced accidentally when you fitted them? Do you get the same reduced reading if you put a multimeter directly on the battery terminals? 2/ I think all batteries need to be “run in” a bit, before full capacity / normal behaviour is achieved. When I first put our Trojans in they were absolutely weird, and pants. I had to deep cycle (as in down to 30% SoC) them a couple of times before they were even vaguely reasonable. To be fair to them, the instructions did say that maximum capacity would be reached after about 100 cycles and this was correct. Obviously Trojans are significantly different from sealed leisure batteries but even so, perhaps your new batteries just need some use? Or you could try the Basil Frawley technique and flog them with a tree branch until they agree to behave. I save the flagging to Ali. I get what you say about giving them a few cycles, just trying to avoid the hassle of battery changing out on the towpath. Haven’t put a meter on each battery terminal whilst under load. Should have I know! Did check each battery with a meter whilst charging and all readings were equal. Thanks, il check under load readings when next aboard.
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Post by peterboat on Jun 13, 2020 13:47:50 GMT
Difficult to know without being there but a couple of thoughts: 1/ Could there be a highish resistance connection somewhere between the batteries and whatever it is you are reading the voltage from, that you introduced accidentally when you fitted them? Do you get the same reduced reading if you put a multimeter directly on the battery terminals? 2/ I think all batteries need to be “run in” a bit, before full capacity / normal behaviour is achieved. When I first put our Trojans in they were absolutely weird, and pants. I had to deep cycle (as in down to 30% SoC) them a couple of times before they were even vaguely reasonable. To be fair to them, the instructions did say that maximum capacity would be reached after about 100 cycles and this was correct. Obviously Trojans are significantly different from sealed leisure batteries but even so, perhaps your new batteries just need some use? Or you could try the Basil Frawley technique and flog them with a tree branch until they agree to behave. I save the flagging to Ali. I get what you say about giving them a few cycles, just trying to avoid the hassle of battery changing out on the towpath. Haven’t put a meter on each battery terminal whilst under load. Should have I know! Did check each battery with a meter whilst charging and all readings were equal. Thanks, il check under load readings when next aboard. At this moment in time you have nothing to lose by just using them Ian, as Nick says batteries need a few cycles before they work at full performance, even if you only get a few years from them its a bargain as they were free, fingers crossed that you get five years from them
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Post by ianali on Jun 13, 2020 15:24:18 GMT
I save the flagging to Ali. I get what you say about giving them a few cycles, just trying to avoid the hassle of battery changing out on the towpath. Haven’t put a meter on each battery terminal whilst under load. Should have I know! Did check each battery with a meter whilst charging and all readings were equal. Thanks, il check under load readings when next aboard. At this moment in time you have nothing to lose by just using them Ian, as Nick says batteries need a few cycles before they work at full performance, even if you only get a few years from them its a bargain as they were free, fingers crossed that you get five years from them Yeh your right. Probably only posted as I was bored.. no pub equals to much free time. Taking a day cruise tomorrow so il leave fridge on tomorrow night. Gives me a good excuse to pop back to boat Monday. I’m fortunate in that we only live a couple of miles from boat. Cheers for the reply.
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Post by Deleted on Jun 13, 2020 19:28:07 GMT
So batteries. Due to error I was supplied 3 months ago with 4x sealed lead acid 130 amp batteries. My last set of 4 110amp were in for over 5 years. Only changed as we noticed a definite change in performance of late. I complained to the supplier of the new ones and he refunded all the money and said keep them. I thought great result! Anyway..I’ve noticed that when we spend a day on the boat, today for instance, lots of cloud, so solar giving only a couple of amps that the voltage reading when the fridge and stereo is on the battery voltage drops within minutes from 12.7 to 12.5. This didn’t happen with previous batteries. Turn off stereo and fridge and it bounces back to 12.7 in a couple of minutes. We cannot overnight as yet so no idea what happens if fridge etc is used all night. I want to sort out what’s wrong before we go out properly when allowed(July) ? I’m thinking of leaving fridge running overnight and returning next day to see what’s what? Anyone any suggestions? Throw new batteries overboard and start again? Might some batteries behave differently and show faster, larger voltage changes but still be basically ok? Sealed can be like that. I've had the same issue. Take them below 70%, then give them a good charge. Do this a couple of times and you should notice a difference.
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