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First Impressions with Lithium Battery Upgrade
#8

Forest,

I can adjust the float value in the remote and it is set to 13.3VDC right now. The remote says its in Float Charging mode.

According to Magnum....

Float charge happens after Absorb charge and lasts for four hours after that the system enters FULL charge. It will remain in full charge until the battery voltage drops below 12.7 volts, when it will enter float charge state again. [Note: the knee of the curve when the battery is at the end of its charge-life is at 12.5VDC which is really close to the fixed 12.7VDC]

If the battery voltage falls below the 12.1VDC it will enter the Bulk charge state.

So, if my Magnum is set for 13.3VDC float voltage, and the “re-float” voltage is 12.7VDC (fixed), the system should bounce between those two values.

Here is simplified state diagram of charging for Magnum / Battleborn
Bat voltage. State. Note
====================
12.1 V Bulk. Until Absorb charge is achieved. (14.4VDC)
14.4 V Absorb. Adjustable time based on Ampere Hour rating of battery bank
13.3 V Float. Adjustable voltage. Lasts for 4 hours
13.3 V Full. Stays in Full until voltage drops to 12.7
12.7 V Float. Adjustable voltage. Lasts for 4 hours.
13.3 V Full. Stays in Full until voltage drops to 12.7

...

I will talk to Battleborn / Magnum and see what they say.

Thanks for your help!

Bill Johnson
Birmingham, Alabama
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Messages In This Thread
First Impressions with Lithium Battery Upgrade - by bikestuff - 05-29-2019, 05:34 AM
RE: First Impressions with Lithium Battery Upgrade - by bikestuff - 05-29-2019, 06:20 AM
RE: First Impressions with Lithium Battery Upgrade - by smagown - 05-29-2019, 06:25 AM
RE: First Impressions with Lithium Battery Upgrade - by pairodice - 05-30-2019, 05:42 AM
RE: First Impressions with Lithium Battery Upgrade - by bikestuff - 05-30-2019, 06:02 AM
Charging and Lithium Batts - by bikestuff - 05-30-2019, 06:29 AM
RE: First Impressions with Lithium Battery Upgrade - by folivier - 05-30-2019, 06:57 AM
RE: First Impressions with Lithium Battery Upgrade - by bikestuff - 05-30-2019, 07:42 AM
Some back of the napkin calculations on capacity - by bikestuff - 05-30-2019, 07:55 AM
RE: First Impressions with Lithium Battery Upgrade - by Richard - 05-30-2019, 02:56 PM
RE: First Impressions with Lithium Battery Upgrade - by bikestuff - 05-30-2019, 04:40 PM

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