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This is the Sunny Buddy, a maximum power point tracking (MPPT) solar
charger for single-cell LiPo batteries. This MPPT solar charger
provide you with the ability to get the most possible power out of
your solar panel or other photovoltaic device and into a rechargable
LiPo battery. Set-up is easy as well, just plug your solar panel into
one side of the Sunny Buddy and your battery into the other and you
are good to start charging!

The output of the Sunny Buddy is intended to charge a single polymer
lithium ion cell. The load should be connected in parallel with the
battery. By default, the Sunny Buddy comes set to a maximum charge
current of 450mA with a maximum recommended input of 20V (minimum 6V).
It's recommended that batteries not be charged at greater than their
capacity rating; thus, the smallest battery that should be charged
with the Sunny Buddy is 450mAh.

Each Sunny Buddy comes equipped with a LT3652 power tracking 2A
battery charging circuit and pre-installed barrel jack and 2-pin JST
connectors with unpopulated areas to install your own personal 3.5mm
screw terminals for added input/output options.


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General information

Manufacturer SparkFun
Product type Electronics modules
Item number5998468
Manufacturer no.PRT-12885

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Returns and warranty

Warranty 24 month Bring-in
30-day right of return

30-day right of return

This product may be returned within 30 days after shipment or collection. A minimum of 10% will be deducted from opened products. Unfortunately, we cannot accept a product if it is damaged, incomplete or missing its original packaging.

Returns and warranty

Please use our simplified returns and warranty process to return a product or register a warranty case. Returns and warranty

Please use our simplified warranty process to view the warranty period as well as any warranty extensions you may have purchased. This will ensure that your return or warranty case is processed quickly and effectively.


Mail delivery

 Expected delivery time: approx. 10–12 days
Currently 3 piece(s) in stock at the supplier


All locations

 Expected delivery time: approx. 10–12 days
Currently 3 piece(s) in stock at the supplier

If ordered immediately.
Information subject to change.

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SparkFun Sunny Buddy MPPT Solar Charger SparkFun Sunny Buddy MPPT Solar Charger