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Dell Inspiron 15 battery upgrade
Inspiron 15 3520
Service manual has two options
1. 4 cell 54 wh 15vdc
2. 3 cell 41 wh 11.2vdc
Question can I upgrade the 3 cell battery to a 4 cell?
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Inspiron 15 3520
Service manual has two options
1. 4 cell 54 wh 15vdc
2. 3 cell 41 wh 11.2vdc
Question can I upgrade the 3 cell battery to a 4 cell?
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ejn63
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March 31st, 2024 10:55
As long as the system does not have a 2.5" SATA drive in it, yes - you will need the battery and likely a new battery cable.
ApoelistasDell
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March 31st, 2024 16:38
comes with nvme. the battery ordered comes with a battery cable.
ApoelistasDell
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April 4th, 2024 10:13
This is what I ordered.
ApoelistasDell
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May 3rd, 2024 17:23
Upgraded finally the battery. Had to change the cable back to stock. The one that came with battery was incompatible. (has excellent health - 7% wear level)
So after upgrading the battery ram speed did not improve and bios advanced (ram and cpu / performance) features remained hidden.
The only reasoning behind this is that Dell ram gets hot due to higher speed and in order to keep things cool Dell has downclocked ram speed due to insufficient or inadequate cooling capability due to design ventilation restrictions.
Also had to remove the ssd caddy and its cable (came with option to add ssd) to make room for larger battery. Used one of the caddy screws in order to fix the battery in one additional spot.
I doubt if same laptop with an i7 will perform any better unless it has improved ventilation.
(edited)