I thinking about getting a trickle charger or battery tender to look after my battery this winter. I used to have an optomate when I had a motorcycle, but that went with the bike years ago.
So, what will be best for a lead acid battery, a trickle charger or a battery tender?
trickle vs tender.
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Sloppysod
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trickle vs tender.
Stu 
"Some cause happiness wherever they go, others whenever they go"Oscar Wilde (1854-1900)
"Some cause happiness wherever they go, others whenever they go"Oscar Wilde (1854-1900)
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mickthemaverick
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Re: trickle vs tender.
For my lead acid standby battery I have a unit like this which has served me proud for 7 years now!!:
https://www.ebay.co.uk/itm/163935807130
https://www.ebay.co.uk/itm/163935807130
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
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tricoloured
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Re: trickle vs tender.
Hi
I bought one of these from Lidl a few years back and it's served me well, it's my second unit as my first was borrowed and never returned. It says "Long-term connection for improved charge retention without sulphate formation" they are on sale again in the UK on the 2nd November.
They have good long cables too.
https://www.lidl.co.uk/p/ultimate-speed ... /p10038309
Regards
Bobby
I bought one of these from Lidl a few years back and it's served me well, it's my second unit as my first was borrowed and never returned. It says "Long-term connection for improved charge retention without sulphate formation" they are on sale again in the UK on the 2nd November.
They have good long cables too.
https://www.lidl.co.uk/p/ultimate-speed ... /p10038309
Regards
Bobby
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Sloppysod
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Re: trickle vs tender.
I'll have a look in Lidl next weekend. Cheers.tricoloured wrote: 24 Oct 2025, 19:38 Hi
I bought one of these from Lidl a few years back and it's served me well, it's my second unit as my first was borrowed and never returned. It says "Long-term connection for improved charge retention without sulphate formation" they are on sale again in the UK on the 2nd November.
They have good long cables too.
https://www.lidl.co.uk/p/ultimate-speed ... /p10038309
Regards
Bobby
Stu 
"Some cause happiness wherever they go, others whenever they go"Oscar Wilde (1854-1900)
"Some cause happiness wherever they go, others whenever they go"Oscar Wilde (1854-1900)
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bobins
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Re: trickle vs tender.
I also bought the precursor to that one several years ago - I actually bought two of them at the time ! One expired after quite a lot of use, and the second one is still doing good - though only occasional - use to this day. Do check whether it's actually sufficient for your battery though, as they're not really up to charging larger batteries.
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PaulC5
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Re: trickle vs tender.
If a car is not going to be used for some time it might be better to disconnect the battery and maybe charge it every month or so. I used a Lidl smart charger for years on our C5 connecting every few days via the tow bar socket (easier than lifting the bonnet/removing the battery cover). The charger design was to go up to about 14 volts at a few amps, stop, the voltage would drop and then do some low amp trickle charging back up to 14.4 volts and stop so most of the charging was at a lower voltage which I think was not good for the battery. When the car is running it would be about 14 volts charging which I think lead acid batteries prefer. Batteries did not last more than a few years but if the car had been used daily it might have been different.