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Torhaantje

Tamiya 51105 Lf1100-6.6v Racing Pack

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Hi all!

With the rerelease of the Buggy Champ, I was wondering if any of you has bought the Tamiya 51105 LF1100-6.6V Racing pack. Could someone clearify if this battery can be charged by a Nimh/Nicad charger or only by the new LF charger from Tamiya. Any insights ar more than welcome!

Thanks,

Rick

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No, you need a charger capable of charging Li-Fe batteries as both the method of charging and the detection when it is charged are very different.

It doesn't have to be the Tamiya charger though as some (but not all) Lipo capable chargers can charge Li-Fe batteries as well..

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Hi Terry,

Thanks for the answer. Are there any chargers, apart from the tamiya one( which is 110 v, so I've heard), that are 220 v and capable of charging these new LF batteries?

Thanks, Rick

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Hi Terry,

Thanks for the answer. Are there any chargers, apart from the tamiya one( which is 110 v, so I've heard), that are 220 v and capable of charging these new LF batteries?

Thanks, Rick

I'm about to buy a Bantam BC6 charger, which does:

  • NiCd
  • NiMH
  • LiIo: 3.6V
  • LiPo: 3.7V
  • LiFe: 3.3V
  • PB (Lead Acid)

It's available in AC/DC version which supports DC 11~18 volts and AC 100~240V.

Not got anything other than LiPo, NiMH and NiCd here so not able to test it with LiFe packs, but it is definitely supposed to work with them. Full balancing charger & discharger which also includes a storage mode for putting partial charge in the cells prior to putting them away for a while.

Will let you know how I find using it when it arrives

Steve

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IF you look close, pretty much all the lipo chargers can do LiFe as well. I know the Hyperion ones can. And they out perform similar Bantam models. EOS0606i AC/DC max's out at 6amps while the BC6 can only do 5amps even though they have the same watt ratting. This will be especially important when you start buying lipos bigger than 5000mah or charging LiFe at high C rates...

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IF you look close, pretty much all the lipo chargers can do LiFe as well. I know the Hyperion ones can. And they out perform similar Bantam models. EOS0606i AC/DC max's out at 6amps while the BC6 can only do 5amps even though they have the same watt ratting. This will be especially important when you start buying lipos bigger than 5000mah or charging LiFe at high C rates...

Yep, I looked into both the Hyperion and Bantam models as main choices. As long as you get the latest version of the Hyperion then you get the Storage mode and an upgraded screen, but removal of Lithium-Ion support (which nobody uses anyway).

From most of the reviews I found the Bantam was preferred. The main reasons were the habit that the Hyperion had of eating balance boards, the quality of screen and the easier to use menu system on the BC6.

As usual, the best charger for a particular person comes down to what the user is after.

I wanted the temp probe for use with my remaining nimh packs and the memory modes to swap between presets for my nicd, nimh and lipo quickly and easily.

The BC6 also offers the FAST charge mode which provides 93-95% charging in a much shorter time whilst not exceeding 1C - prolonged balanced CC charge phase and skips the CV charge which normally takes 30% of charge time. Much quicker top-ups for on the fly use.

From what I see the Hyperion doesn't offer me these features, and they are almost exactly the same price (£10 difference).

The fact that they are both 50w chargers means that they both top out at the same point once you get to larger voltage packs due to wattage issues (pack voltage > 8.3v = same charge rate). 9.9v life packs / 8.4v nimh (E-Maxx) / 11.1v lipo, etc - either charger will charge them at the same rate. The Hyperion will be faster for 6.6v life, 7.2v nimh & 7.4v lipo packs though (6 amp versus 5 amp - provided the pack can take / requires it).

TBH I'm not planning on getting packs larger than 5000mah at present, and if I was then I would look at chargers which are DC only and using a separate PSU to get a worthwhile 10 / 20amp charging. Definitely the way to go if you want to use the life cells and take advantage of the fast charge time.

Steve

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The BC6 also offers the FAST charge mode which provides 93-95% charging in a much shorter time whilst not exceeding 1C - prolonged balanced CC charge phase and skips the CV charge which normally takes 30% of charge time. Much quicker top-ups for on the fly use.

How does it do that without exceeding lipo's max safe voltage of 8.4x? The CV mode is supposed to be what keeps your lipos from going up in flames... :unsure:

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How does it do that without exceeding lipo's max safe voltage of 8.4x? The CV mode is supposed to be what keeps your lipos from going up in flames... :blink:

No idea, just what I've read both about the charger and users views from various sites and forums ;)

If it helps, this is from the manufaturer: The charging current decreases down to 1/5 of standard, then to 1/10 for the CV phase (which is also shortened). :unsure:

To be honest it's beyond me how it works, but I've read interesting reviews on how effective it is for fast charging without any known issues to the pack. Some people even claiming 30%+ shorter charge times, with only 5-7% less capacity (charge completed in 35mins at 1C in many cases).

Grabbed this chart of the IBT Power site .

Li_Po_ChrGph.JPG

It's for an 850 mah LiPo - CC/CV Charge at 4.2V, 1C +25ºC - No named charger, just using it as a guide to CC/CV times.

Interestingly the CC phase shown here only takes about 50 mins, yet the total charge time is nearly 90 minutes! Just shows how long the CV phase can last.

Not much help I know... When it arrives (and the baby gives me a chance) I'll run some tests on my Orion 2400mah 2s packs (running them until the LVC kicks in - in the same car - then charging using each method). I'll post charge times, final voltages and capacity for each method.

All the best

Steve

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Very interesting. I look forward to your comparison...

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Very interesting. I look forward to your comparison...

Argh!!!! Looks like the suppliers (Trakpower) are being difficult in regards to stock. I know Modelsport are having issues getting Trakpower products at present, and it seems everyone else is too...

Hardly any BC6 units left in the UK, and those that have stock are charging too much.

Will let you all know if I get one (and will definitely test this "fast" mode), but it's looking more likely that I'm going to be stuck for a while. Seriously considering the BC6-10, but £20 plus a PSU is putting me off a bit...

Steve

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Hi Guys,

I am planning on getting a new charger so that I can charge the Tamiya LF1100-6.6V packs. here's the link to the charger.

Hyperion EOS 0606i

From what I gather, it should suffice.

Hope you guys can chime in incase I missed something. Thanks a million! :)

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Hi Guys,

I am planning on getting a new charger so that I can charge the Tamiya LF1100-6.6V packs. here's the link to the charger.

Hyperion EOS 0606i

From what I gather, it should suffice.

Hope you guys can chime in incase I missed something. Thanks a million! :)

Just as a though (as laid out by 94eg! earlier)...

That charger will charger at 3amp max. Not a problem for the 1100 (will charge at 2.7C - quick charge there) but if you get other larger packs in future you may hit a snag on charge time/rate...

LiPo and LiFe packs need to be charged at 1C, so if you got any packs for other cars in future which are bigger than 3000mah, it will be a pain for charging...

Steve

PS - Bantam BC6 now on it's way - should be here next week

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No, the one he linked has a 6amp max. It just doesn't have the built in AC power supply of the 0606i-ACDC that I linked...

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No, the one he linked has a 6amp max. It just doesn't have the built in AC power supply of the 0606i-ACDC that I linked...

Doh! I would swear it was different earlier - I even clicked the link and read it! :wub::)

Must repeat the following over and over - "learn to read" :wub:

Sorry all

Steve

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Just as a though (as laid out by 94eg! earlier)...

That charger will charger at 3amp max. Not a problem for the 1100 (will charge at 2.7C - quick charge there) but if you get other larger packs in future you may hit a snag on charge time/rate...

LiPo and LiFe packs need to be charged at 1C, so if you got any packs for other cars in future which are bigger than 3000mah, it will be a pain for charging...

Steve

PS - Bantam BC6 now on it's way - should be here next week

Thanks for the explanation. In this case, it will suit me very well as a second charger, as long as I do not get batts above 3000mah as you say, then I am ok. :(

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Thanks for the explanation. In this case, it will suit me very well as a second charger, as long as I do not get batts above 3000mah as you say, then I am ok. :D

No he was mistaken. If you read the following posts you notice it runts up to 6amps, not 3amps. This means it will do 2-cell lipo up to 6000mah.

See what you've done Lemming!!! :(

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No he was mistaken. If you read the following posts you notice it runts up to 6amps, not 3amps. This means it will do 2-cell lipo up to 6000mah.

See what you've done Lemming!!! :angry:

DOH! I did apologise once I realised what a numpty I was... :(

I think maybe I need a forum break :blink:

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Doh! I would swear it was different earlier - I even clicked the link and read it! :):D

Must repeat the following over and over - "learn to read" :D

Sorry all

Steve

OMG...I know what happened. It was me, my mistake...I am so sorry. You could be right that you saw what you saw in the link which was EOS0403i. I changed it to 0606i after I realise it was not what I wanted to purchase. :D

sorry for the confusion. You were too fast in reading the post.....but accurate. ;)

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DOH! I did apologise once I realised what a numpty I was... :)

I think maybe I need a forum break :D

No, no breaks, now that you know its not your fault. :D

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Just wondering if there is any other batteries you can use instead of this one for the Sand Scorcher/Buggy Champ? Prefer LI-po suggestions if any.

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Hi guys

I´m re-opening this old post. Does anyone have any experience from Tamiyas life (1100 or 2200) and/or made a comparison with lipo?

Is it possible to use a 2-cell lipo on Tamiyas original 7,2v brushed esc?

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No experience with LiFe batts, but you can use a lipo with any Tamiya ESC, but you don't have a low voltage cut off, so you should get a separate one.

The low voltage cut off in Tamiya ESCs is for LiFe voltages which or supposed to be too low.

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Ok!

Just to be sure, I can use lipo on both the teu-101 and teu-104 as longs as I use a 2-cell lipo and a separate voltage cut-off, correct? Can You recommend a suitable battery for our vintage Tamiya buggies?

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