# Adjusting EasySolar charge voltage for LiFePO4 battery

**URL:** <https://community.victronenergy.com/t/adjusting-easysolar-charge-voltage-for-lifepo4-battery/57506>\
**Category:** DIY\
**Tags:** battery\_protect, beginner\
**Created:** [3 May 2026 19:46 UTC](https://community.victronenergy.com/t/adjusting-easysolar-charge-voltage-for-lifepo4-battery/57506 "2026-05-03T19:46:10Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Ahmed](https://avatars.discourse-cdn.com/v4/letter/a/8c91f0/32.png) [@Ahmed](https://community.victronenergy.com/u/Ahmed)\
**Post date:** [3 May 2026 19:46 UTC](https://community.victronenergy.com/t/adjusting-easysolar-charge-voltage-for-lifepo4-battery/57506/1 "2026-05-03T19:46:10Z")

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How to adjust EasySolar charge voltage for a LiFePO4 battery by DIP switch?

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**Author:** ![MikeD](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/miked/32/1522_2.png) [@MikeD](https://community.victronenergy.com/u/MikeD)\
**Post date:** [3 May 2026 19:47 UTC](https://community.victronenergy.com/t/adjusting-easysolar-charge-voltage-for-lifepo4-battery/57506/2 "2026-05-03T19:47:42Z")

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1. Upgrade the firmware to include the latest battery models.
2. Use a Mk3 and VE-configure to set the battery parameters.

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**Author:** ![Ahmed](https://avatars.discourse-cdn.com/v4/letter/a/8c91f0/32.png) [@Ahmed](https://community.victronenergy.com/u/Ahmed)\
**Post date:** [4 May 2026 03:18 UTC](https://community.victronenergy.com/t/adjusting-easysolar-charge-voltage-for-lifepo4-battery/57506/3 "2026-05-04T03:18:20Z")

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Thanks for sharing your experience.  
It means that I should buy an additional mandatory accessory (**Interface MK3-USB) to update firmware.**

Sorry, I’m a beginner. Is it enough? Or I should also buy **VE.Direct to USB interface?  
I’m disappointed to have a new device in April 2026 with old firmware.**

I noted a phrase on the front panel of EasySolar: **“Charge lead-acid or li-ion batteries only.”**

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**Author:** ![MikeD](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/miked/32/1522_2.png) [@MikeD](https://community.victronenergy.com/u/MikeD)\
**Post date:** [4 May 2026 03:37 UTC](https://community.victronenergy.com/t/adjusting-easysolar-charge-voltage-for-lifepo4-battery/57506/4 "2026-05-04T03:37:06Z")

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The MK3 is needed for programming and fine tuning the battery parameters, not just for updating the firmware.  
The VE-Direct is needed only for the MPPT’s - where one does not have bluetooth access, and the smaller inverters.  
Don’t need to apologise for being a beginner - we all were once.  
Distributors NEVER update firmware unless they are also installing. The firmware update may or may not be needed, but is recommended.

> [@Ahmed](#):
>
> I noted a phrase on the front panel of EasySolar: **“Charge lead-acid or li-ion batteries only.”**

so? These inverters are generally sufficiently flexible to charge any battery where the charge end point can be determined by voltage. they follow the CC/CV/FV characteristic, constant current to absorption voltage, constant voltage until time has expired or until current drops to threshold, then float voltage. Li-ion and LiFePO4 are pretty much the same for charging. Most of these inverters these days are used with LiFePO4 batteries.