I bought this to complement https://www.amazon.com/dp/B00MF70BPU, since it comes with a side facing charger. The battery and the charger are going to be placed inside a wall with an access panel for https://www.amazon.com/dp/B0757H2GBD. It works perfectly and is a much better solution than Moen's D cell batteries for backup as it is self charging and lasts longer in case of power outages.
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