SLA/AGM acidresistence

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Rogresalor
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SLA/AGM acidresistence

Hello dear people

Last month the new accu's where delivered here and I've some questions, very difficult questions. I'm Dutch, so I try to spell it as correct as possible :)
*Not all Dutchman looks soccer and drinks beer ;)

1.Given: Acidresistence. The further you discharge a SLA/AGM accu the more acid the envoirement becomes. For the one it's resistency is 60% and for the better ones 80%. 90% or higher never seen.
2.Given: Cyclic use when discharge for 35% or for 70% and even for the lethal 100%

I went today at downtown and that distance is 2 x 20.4km. To the city Nymegen the wind is in my back and at the returntrip it blows full against me. Normally the charger needs exact 6 hours to fill the accus from zero to 100%. Just looking and it is loading for 5:55 hours. This means the accus where completely drained to 0%, but why the scooter whas not empty at home. The indicater wasn't most down to the clipping zone, but the charging indicates that these SLA's where drained 100%

But this is still impossible? At home to ride at the alley to my door the scooter has enough power to ride normally. This means:
1. The accu have a Higher Amperage than printed on the container (is this possible?)
2. I sat at the bottom of the load and this really hurts the battery, but for this time to start them up or is this a fairytale?? Why the power indicater won't reach the bottom by full acceleration??

This is strange and sorry if my English is not that perfect.

5 accus in serial 12 volt 18 Ah from LandPark, just new so I don't hurt them anymore. To downtown the bus is exacly even as fast as with the scooter, but busses are expensive here and it cost me €4.00 or $6.00 for this trip of 2 x 19,2 km (measured by Google Earth, love it)

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dogman
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Re: SLA/AGM acidresistence

You may be getting more energy into the batteries now that they are broken in. At first, you get less total watthours stored when the battery is at 100% charge. Now you get some more watthours in than you did before. So it will take a bit more time to charge 100%. You are most likely getting a few miles more range than a month ago.

Be the pack leader.
36 volt sla schwinn beach cruiser
36 volt lifepo4 mongoose mtb
24 volt sla + nicad EV Global

Rogresalor
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Re: SLA/AGM acidresistence

Thank you

These batteries are 5 x 12 volt 18 Ah and with a load current of 74 volt 2,5 Ah they should be loaded form 0% to 100% within 6 hours. That's the calculation.
You're right with the mileage, I can drive to the big town and back without any fear of sorrow. 41 real kilometers are not any problem as long as I keep the speed maintained at 25-30 km/h. Like in the beginning days of this scooter the mileage is the same or maybe some better, but a charger has it's given output or?
These batteries have the same amperage as the original one, but the normal current is not 4,3 Ah, but 5,6 Ah (written on battery) so this means I can ask more current with a more less loss in heat. Yes, I notice it, the voltmeter is more optimistic when driving. My scooter drains more than 5,6 Ah and his max is 16 Ah and that's a high current with SLA's. So gently driving the scooter expands it's range drastically. If I ride like a schoolboy then my mileage is maybe 27 km. Draining a set of lead acid batteries is easy on a scooter.

I don't have the money for Li-ion cells in the scooter since these cells are double in price here than at your location. Europa is extremely expensive in rule of electric driving, batteries and assurantion.

Th eonly Li-ion batteries I see are in my 2 laptops and in the many electric Sparta ION bikes here. In a scooter like my scooter a lead acid is about 5 times cheaper as Li-ion!

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