https://www.ebay.co.uk/itm/Smart-Battery-Charger-Car-Caravan-Motorbike-Boat-Trickle-2-10-20amp-12v-24v/191797142148?hash=item2ca8002284:g:uKYAAOSwKtlWsI-e
got 1 of these the other day as my ol trusty 1 gave up the ghost...
very impressed... trickle and 20a charge! plus full digital readout of battery charge taken current and voltage...fully inteligent too auto switch off and battery condition monitor...fantastic price for the current rating and the monitoring...lightweight and small.
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not cheap though is it :)
Theres another way of looking at it...it deep cycle low amp recharges and conditions old batterys so it saves 1 battery its paid for itself.
The battery that came with my FD still on car and it did the trick on the FB battery too...that seems to be rejuveninated...and with new batterys going leadfree and gutless need to look after the old 1s...
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