I was thinking that I might start wiring in connections for grid chargers. Given that the pack is 20 sticks, wouldn't it be better to use 5 smaller chargers (4 sticks = 30V each?) I want to start wiring in the connections on the relay board side and bring out a (safe) connector with 6 charging leads. I'd like to wire in a main relay disconnect and a fan connect as well.
Plugging in the connector would disable the main relays and turn on the fan.
If you do as I did and put in a 20 point connector then you can set up any combination of "sticks" that you like, 7V , 14V, 21V, 28V, etc, to your hearts content. All you do is set jumpers where you want. You could use two 80V chargers, four 40Vchargers, five 32V chargers, ten 18V chargers, or twenty 8V chargers, any combination you like, without opening the battery box.
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Jim Isbell
2000, 5 speed, 250,000 miles
"If you are not living on the edge, well then,
you are just taking up too much space."
If you do as I did and put in a 20 point connector then you can set up any combination of "sticks" that you like, 7V , 14V, 21V, 28V, etc, to your hearts content. All you do is set jumpers where you want. You could use two 80V chargers, four 40Vchargers, five 32V chargers, ten 18V chargers, or twenty 8V chargers, any combination you like, without opening the battery box.
Jim, you're missing the point. Of anybody with an Insight, I have the least use for a charger.
I'm looking to sell the prewire service with battery rebuilds. My plan would be to have a pigtail long enough to reach outside the battery box and safe enough for the average user. I'm sorry, but your terminal strip is not safe enough for the non-technical public.
The reason I was suggesting 5 small chargers was that they would be only 30v each, and 20 can't be divided nicely by 3.
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2000 MT #4227 175K miles - Citrus Yellow, BetterBattery
What I have is a barrier strip with a pigtail connected to a connector on the outside of the battery box so I dont have to get inside to the barrier strip.
But, what a am suggesting is a pigtail of 20 wires instead of a pigtail with 6 wires. Just a change in the number of wires, not in the method of implementation. This gives more options.
__________________
Jim Isbell
2000, 5 speed, 250,000 miles
"If you are not living on the edge, well then,
you are just taking up too much space."
What I have is a barrier strip with a pigtail connected to a connector on the outside of the battery box so I dont have to get inside to the barrier strip.
But, what a am suggesting is a pigtail of 20 wires instead of a pigtail with 6 wires. Just a change in the number of wires, not in the method of implementation. This gives more options.
I Know what you're saying, but I don't need to experiment and 20 is a lot more work (several times per week). I would use 2 but that soul compromise the breaker functionality. The problem is the 60-40 split.
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2000 MT #4227 175K miles - Citrus Yellow, BetterBattery
Nemystic drove down and we gave his pack a grid charge/rebalancing with the new charger. Brians charge graph is here: MIMA Pack Whack and rebalancing the battery - MIMA Honda Insight Modified Integrated Motor Assist
As we can see, the voltage rate of rise became nearly flat for the last 20 minutes, at which point we stopped the charge.
The pack was MIMA charged to as high as it would go on the drive down, so our data starts where the BCM limited MIMA charging.
The chart was prepared from Brians manually logged data.
I am most curious as to any effect on his recalibrations that this simple one shot topping charge has produced.
The chart was prepared from Brians manually logged data.
I am most curious as to any effect on his recalibrations that this simple one shot topping charge has produced.
I am trying to come up with a good spot to permanently tap into the battery pack for topping off when needed.
Mike shows attaching his positive lead to the precharge resistor in a picture on his website, and mentions that this is done to prevent damage to the inverter when the car is off and being charged by the trickle charger.
Now my question is:
Why is attaching to the precharge resistor such an important location to charge the battery at? The precharge resistor circuitry ultimately has to lead to the large main posts that connect the battery. If so, then wouldn't the inverter still be potentially damaged when charging from the precharge resistor location?
Or am I missing something that allows the precharge location to safely charge the battery without harming the inverter while the car is off?
I would like to attach the trickle charger right to the main battery posts, *but* want to be sure this is the safest way to charge the battery.
Any help on the proper charge point and a description of why would really be appreciated.
What your missing is the purpose of the two relays.
The top terminals do not connect to the battery end points unless the car is turned on.
This is the purpose of the two relays, to disconnect the battery from the rest of the electronics.
The point I suggest is always connected to the battery positive terminal with the car on or off. The inverter may not have a problem if the charger is connected to the top post, but you would only be able to charge with the car on.
Therefore unless you want to keep the car powered up during the charge, take the trouble to connect where I suggest.
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