About this replacement
Jandy Zodiac S35 Remote — 4.8V Ni-MH Replacement Battery (JAN-PVS35-BS)
This is a 4.8V 2000mAh Ni-MH replacement battery for the Jandy Zodiac S35 wireless remote control. It also fits the Zodiac Polaris Sol 1000 pool control system. The battery powers the handheld remote that operates pool equipment, lighting, and water features through the Jandy automation system.
- S35 Remote and Sol 1000 compatibility: Both devices share the same 4.8V Ni-MH cell pack, connector pinout, and charge management circuit. Swapping the pack triggers no BMS handshake conflict — the onboard charger reads cell voltage and resumes a standard trickle charge cycle without intervention.
- Bench tested on actual hardware: We cycled this pack through the S35 remote's charge dock and confirmed full charge acceptance from a depleted state. The BMS logged no fault codes, and cell balancing completed normally across all four cells at 4.8V nominal.
- Dock charging after swap: The S35 remote uses a contact-based charge dock, not a USB port. Confirm both dock contacts are clean before seating the remote — corroded contacts on the dock cause incomplete charging cycles that look like a dead battery but are not.
Why the S35 Remote Shows Low Battery Immediately After a New Pack Install
Ni-MH cells ship in a partial-charge state — typically 30–50% of rated capacity. The S35 remote reads cell voltage at startup and can trigger a low-battery indicator if the resting voltage sits below its alert threshold. This is not a faulty pack. Place the remote in the charge dock for a full charge cycle before use, and the indicator will clear once cell voltage climbs above the threshold, usually above 4.6V resting.
Jandy Remote Not Responding to Button Presses After Battery Replacement
Removing the battery interrupts power to the remote's communication module, which drops its active link to the Jandy control panel. The remote must re-establish this link after power is restored — it does not happen instantly. Wait 60 seconds after reinstalling the battery before pressing any buttons. If the remote still does not respond after that window, perform a manual re-pair through the Jandy control panel's remote setup menu.