Submitted: Sunday, Apr 15, 2007 at 00:02
ThreadID: 44320 Views:24131 Replies:4 FollowUps:4
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Super Charge make their own AGM Batteries under the AMPTECH label. The AT121000d - 100Ah, and the AT121200d - 120Ah. Does anyone have any experience with these batteries?
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Reply By: Member - Alastair D (NSW) - Sunday, Apr 15, 2007 at 06:19

Sunday, Apr 15, 2007 at 06:19
I have an Amptech 75AH AGM in the CT and it has been fine for us. I suspect that they are made by one of the large Chinese battery companies and sold under several labels. I bought mine from Battery World and it is one of their standard shelf brands.
AnswerID: 233484

Reply By: Derek from Affordable Batteries & Radiators - Sunday, Apr 15, 2007 at 09:05

Sunday, Apr 15, 2007 at 09:05
Hi Richor

I swaped over from Absorbed Power brand to the Amp-Tech brand 18 months ago and have sold over 200 batteries.

They are good and have had no returns or complaints.

The MRV70 105 a/h 'All-Rounder' by Supercharge batteries is also a great product.



AnswerID: 233503

Follow Up By: Member - Uncle (NSW) - Sunday, Apr 15, 2007 at 18:20

Sunday, Apr 15, 2007 at 18:20
Hi Derek, we have an Amp- Tech 105ah deep cycle, not AGM in the Patrol at the moment. I'd like to say I was happy with it but unfortunately not. Our auto elec that installed it has rang his supplier and so far I havnt heard anything for over a week. Will probably drop in sometime this week to spark his memory again about the problem. It keeps leaking acid from around the top area under the "lip" thats on the topside of the battery.If I dont get any help from the supplier I'll probably replace it soon with an AGM, of another brand. cheers
FollowupID: 494439

Follow Up By: Derek from Affordable Batteries & Radiators - Sunday, Apr 15, 2007 at 19:01

Sunday, Apr 15, 2007 at 19:01
Give me a ring if you have a problem.

Supercharge offer a 12 month exchange warranty on the MRV70. I will sort it out for you. I have done this before for an Absorbed Power Product bought by a EO member and sold by a 3rd party. Absorbed Power were very good with the warranty.


FollowupID: 494444

Follow Up By: Member - Uncle (NSW) - Sunday, Apr 15, 2007 at 19:11

Sunday, Apr 15, 2007 at 19:11
Cheers Derek, will keep that in mind if I have no luck with this guy this week. Battery's performance is fine, it's just dissapointing to have acid leaking all over the inner guard! I've been keeping it washed and covered it with lanotech etc to keep it at bay till I get in there this week.Cheers Laurie.
FollowupID: 494449

Reply By: D-Jack - Sunday, Apr 15, 2007 at 11:05

Sunday, Apr 15, 2007 at 11:05
I have 2, a 120 a/hr which I just charge and carry around in the back for when we need an extra day or two's power, and a 70a/hr under the bonnet as an aux. I presume if the ones you are talking about are measured in a/hr then they are deep cycle types. Had no problems with mine in 6 months, but that's not all that long. They are typical AGMs in that they recharge very quickly, even from car alternator. This info probably doesn't help but I said it anyway!
AnswerID: 233512

Reply By: richor - Sunday, Apr 15, 2007 at 13:24

Sunday, Apr 15, 2007 at 13:24
Thanks for your replies. I have had a love hate relationship with batteries over the last few years. I first installed a Redarc solenoid with an auxillary battery and that worked very well when I was on a driving holiday, but was a dismal failure when I wanted to camp for a couple of weeks.

I then installed two 80w solar panels on the top of my '86 Hilux with a Plasmatronics PL20 and a 200A shunt. I was still using the one battery, a Century 75Ah deep cycle. This was great until I struck three days of overcast skies on my way to Hungerford which meant that the fridge ran all day and night and the battery was getting very flat. (98 amps in and 134 amps out) I had to hook up the redarc again until the weather improved.

I want to increase my battery reserves so I can ride out a few days of bad weather. The recommendation from Collyn Rivers is 185 - 225 Ah for two 80 watt panels. Two 100Ah will be ideal but I need to install them in a less ventilated part of the Hilux than the existing battery so AGM's seem to be the way to go. Our local battery bloke sells Amptech and the All-Rounders but didn't know anything about the AGM's so I wanted to make sure they were reliable. They are expensive and I don't want to be replacing them too soon.

Thanks again for all your replies.
AnswerID: 233527

Follow Up By: Mainey (WA) - Sunday, Apr 15, 2007 at 20:43

Sunday, Apr 15, 2007 at 20:43
buy a 'quality' AGM and you will never look back, they recharge faster with smaller battery chargers and recharge fully with smaller solar panels...
their only drawback is they cost a few $$$ more than the inefficient batteries available.
FollowupID: 494479

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