Paralleling bulk caps with a Li-ion battery to mitigate battery voltage droop

bhl3302 said:

Hi All,

If I ha
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However, I never see people use this way with the battery. Is there any specific reason for not doing this?
View attachment 153032

Thank you!

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bhl3302 said:

Hi All,

If I have a one cell Li-ion battery and it goes to a boost conveter with transient loads at the boost's output.

I want to minimize the droop at V_batt. Can I place several bulk caps (such as 220uF, 470uF, ect) in parallel with the battery when the boost has its transient at the output?

If the battery is a normal DC power source, placing bulk caps at this voltage source will function to suppress the droop. However, I never see people use this way with the battery. Is there any specific reason for not doing this?

Thank you!

Click to expand...

summitville said:

Will lower ESR Caps help?
Initial inrush may be a concern, especially if there is a fuse between the battery and caps

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