Reviving 4Ah Gel Battery with 13V Single Charge and LM350 Power Supply Usage

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#31 15591774 09 Apr 2016 18:21

Krnlmgr Krnlmgr

Level 17

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Post #31
15591774 09 Apr 2016 18:21

Freddy wrote:

Krnlmgr wrote:
In part it is because there are sources given at the very bottom of what was taken from where.
Have you ever verified this, because I did and got burned.
In the wiki was something else, and in the sources given something else.

Everyone has the right to edit the content of Wikipedia, so it is no credibility.

Topic a river, depending on the separate toleration of the rights of the site and the Internet.
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#32 15591823 09 Apr 2016 18:40

Freddy Freddy

Level 43

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Post #32
15591823 09 Apr 2016 18:40

Krnlmgr wrote:
A river topic, depending on the separate toleration of the rights of the site and the Internet.
... and is not related to the current topic.
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Topic summary

The discussion revolves around the feasibility of reviving a 4Ah gel battery that has dropped to approximately 4V. The user inquires about charging the battery with a 13V supply, drawing nearly 2A, and expresses concern about potential damage. Responses highlight that gel batteries typically require a charging current of 1/10C (0.4A for this battery) and caution against high current charging, which could lead to sulfation and irreversible damage. Suggestions include using a lower wattage bulb in series to limit current and the possibility of using a screwdriver battery charger rated at 14V and 450mA. Some participants express skepticism about the battery's viability, while others share personal experiences of successfully reviving similar batteries. Ultimately, the user reports success in reviving the battery, achieving a current draw of 300mA, but is warned about the risk of future failure.
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