- Welcome to A Forum run by Enthusiasts of MidNite Solar .
News:
To visit MidNite Solar click this link www.midnitesolar.com
Recent posts
#1
Lead Acid (Sealed and flooded) / new East Penn Battery manual
Last post by Barry Fields - Today at 11:34:05 AMFYI
#2
New Product Ideas and Discussion / Re: A CLASSIC PRODUCT ADDITION...
Last post by Barry Fields - May 16, 2024, 04:47:07 PMQuote from: boB on May 16, 2024, 04:07:42 PMBBMT ?
from a few posts back
First we need to name this potential new product. I would suggest BBMT (Barry's Better Mouse Trap).
#3
New Product Ideas and Discussion / Re: A CLASSIC PRODUCT ADDITION...
Last post by boB - May 16, 2024, 04:07:42 PMQuote from: Barry Fields on May 16, 2024, 12:56:19 PMQuote from: boB on May 16, 2024, 12:38:01 PMMNGP2 which is CAN
Completely different than the MNGP
Sooo It would make sense if we wish to use BBMT on classic 150 or Hawksbay, it should have both modbus and Can capabilities.
BBMT ?
#4
Lead Acid (Sealed and flooded) / Re: Float current degradation
Last post by Barry Fields - May 16, 2024, 03:37:00 PMAnswers from East Penn
(1) Assuming a reasonable absorb time, once given a float voltage of 2.35 vpc, the float current should eventually stabilize @ approx. 450ma (for a very healthy battery). SOC=100% TRUE? True
(2) If the stabilized float current is above 450ma it is an indication that the battery no longer has 100% of its original AH capacity. TRUE?
The stabilizing current of the GC10 will increase as the battery ages. When the battery is new the stabilizing current will be 450mA. Unfortunately, the rate at which the current increase over time is not linear. The rate of stabilizing current increase is affected by ambient temperature and usage (# of cycles & DoD of each cycle). Taking specific gravity readings is the best way to verify the batteries are fully charged. Page 5 of the attached I&O manual details the ratio of specific gravity to SOC (state of charge).
(3) Is it possible to assign approximate numbers to question (2) ? IE 600ma = 95%AH capacity 900ma = 90% AH capacity
Unfortunately, the charge current can not be used to determine SOC of the battery for reasons stated in the above response. Specific gravity reading are the only way to get an accurate SOC.
(4) In a parallel battery bank, the bank with reduced AH capacity would achieve 100%SOC (with reduced capacity).
?
Correct
(5) That battery would contribute less amperage to the total bank discharge currents and probably require more current in the charge cycle. (efficiency degradation)
Correct
(1) Assuming a reasonable absorb time, once given a float voltage of 2.35 vpc, the float current should eventually stabilize @ approx. 450ma (for a very healthy battery). SOC=100% TRUE? True
(2) If the stabilized float current is above 450ma it is an indication that the battery no longer has 100% of its original AH capacity. TRUE?
The stabilizing current of the GC10 will increase as the battery ages. When the battery is new the stabilizing current will be 450mA. Unfortunately, the rate at which the current increase over time is not linear. The rate of stabilizing current increase is affected by ambient temperature and usage (# of cycles & DoD of each cycle). Taking specific gravity readings is the best way to verify the batteries are fully charged. Page 5 of the attached I&O manual details the ratio of specific gravity to SOC (state of charge).
(3) Is it possible to assign approximate numbers to question (2) ? IE 600ma = 95%AH capacity 900ma = 90% AH capacity
Unfortunately, the charge current can not be used to determine SOC of the battery for reasons stated in the above response. Specific gravity reading are the only way to get an accurate SOC.
(4) In a parallel battery bank, the bank with reduced AH capacity would achieve 100%SOC (with reduced capacity).
?Correct
(5) That battery would contribute less amperage to the total bank discharge currents and probably require more current in the charge cycle. (efficiency degradation)
Correct
#5
General FAQ'S / Re: Is it normal for myMidnite...
Last post by AdminDragon - May 16, 2024, 02:55:32 PMWe were having issues with Mymidnite at that time. Have the readings come back?
#6
New Product Ideas and Discussion / Re: A CLASSIC PRODUCT ADDITION...
Last post by Barry Fields - May 16, 2024, 12:56:19 PMQuote from: boB on May 16, 2024, 12:38:01 PMMNGP2 which is CAN
Completely different than the MNGP
Sooo It would make sense if we wish to use BBMT on classic 150 or Hawksbay, it should have both modbus and Can capabilities.
#7
New Product Ideas and Discussion / Re: A CLASSIC PRODUCT ADDITION...
Last post by boB - May 16, 2024, 12:38:01 PMMNGP2 which is CAN
Completely different than the MNGP
#8
New Product Ideas and Discussion / Re: A CLASSIC PRODUCT ADDITION...
Last post by Barry Fields - May 15, 2024, 09:47:45 PMDo they use something different than MNGP or just a different version of MGNP?
#9
New Product Ideas and Discussion / Re: A CLASSIC PRODUCT ADDITION...
Last post by boB - May 15, 2024, 08:14:38 PMQuote from: Barry Fields on May 15, 2024, 07:35:58 PMin addition to the above questions,
Do the hawksbay and barcelona also use modbus to communicate?
No, they use Canbus
#10
New Product Ideas and Discussion / Re: A CLASSIC PRODUCT ADDITION...
Last post by Barry Fields - May 15, 2024, 07:35:58 PMin addition to the above questions,
Do the hawksbay and barcelona also use modbus to communicate?
Do the hawksbay and barcelona also use modbus to communicate?