12V 30A Dual Battery Charging 100W Solar Flex Bundle
Sold by Renogy UK
From £299.99
Renogy UK's price when we last checked, on 2 September 2026. They run promotions and price by variant, so confirm the current price on their page before you buy.
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Overview
12V 30A Dual Battery Charging 100W Solar Flex Bundle
A 30A dual-battery charger with MPPT solar input, bundled with a 100W flexible panel. It charges the leisure bank while you drive, trickle-charges the starter battery, and keeps charging from solar when you stop.
- 30A DC-DC charging from the alternator
- Trickle charges the starter battery as well as the leisure bank
- MPPT solar input built in
- 100W flexible panel included
- Charges while driving and while parked
The starter battery is the point
Most dual-charging setups look after the leisure bank and forget the vehicle battery — which is why so many converted vans need a jump start after a fortnight standing. This bundle trickle-charges the starter too, so the van still starts after a long stop. On a vehicle with an alarm, a tracker and a dashcam quietly drawing current, that is worth real money.
One box, three sources
Alternator, solar and the starter battery all managed by a single unit means one set of cable runs and one device arbitrating between them. Compared with a separate DC-DC charger, separate solar controller and a battery maintainer, it is less to install and less to go wrong.
Before you order
30A suits a 100–200Ah leisure bank. The 100W flexible panel is a supplementary source rather than a primary one — useful for holding charge, not for running a fridge through a cloudy week. Bonded flat, flexible panels run hot and have a shorter service life than rigid ones.
Renogy's published figures
Taken from Renogy's own specification for this product, on the date shown by the price. Anything wired into 230V mains should be signed off by a qualified electrician.
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