li-ion batteries

One or two people on other forums have been recommending li-ion batteries,so I thought I would give one a try.
First problem not all chinese ebay sellers will ship to France,but I did find one seller who would ship to France and he supplied me with a 12v 9800mAh.
 

 
As per recommendations I taped up the supply male plug and just use the charging socket for supply and recharging.
The battery was charged when it arrived(12vs) so I attached it to a Aristocraft lil-critter with a trail truck to carry the battery.
Having no speed controller fitted and the speed of the critter being a tad quick for my liking,I also attached seven tank cars.

The pic shows the critter with the cab missing waiting for a repaint.
 

 
Over the course of the last few days,I`ve run the train a total of 17 hours.This evening there was a marked down turn in performance but 17 hours is not bad.I`m impressed.
The battery is now showing a charge of 10.2 volts which is near its cut off point.
Will see tomorrow how long a recharge takes.

Van, can you give the battery dimensions please and a rough idea of pricing.

Hi Van

Can you bring it over when you come tomorrow, I'd like to compare with a Li-ion i've got here.  And see how the 'lil critter goes on my undulating track! 

We could also shoot some video.

David Grantham wrote:

Van, can you give the battery dimensions please and a rough idea of pricing.

 
 Hi David.
The battery is 120mm long x35mm x65mm plus the cables and a little rocker switch.
To big to fit in a loco but for a trail truck or large tender,its size should not be a problem.
I paid including shipping £29 which from china is abit expensive.The seller still has them on ebay(item no 370278561709) but the price has risen slightly.
 
I`ve just bought a 6800mAh one of ebay tonight for £13,from china of course(item no 270983550838.
 
They are available in the UK on ebay (item no 121116065131)but for a 6800mAh, they are is nearly £40.

Theres one or two threads about these batteries on GSC under battery power.The original poster Whatlep has quite a bit of experience using li-ions.

 Some useful info available

GWhizz wrote:

Hi Van

Can you bring it over when you come tomorrow, I'd like to compare with a Li-ion i've got here.  And see how the 'lil critter goes on my undulating track! 

We could also shoot some video.

 
 I`ll be there with a battery Shoema and Carl`s diesel

Here's the vid..