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Re: [RFI] Battery Maintainers & RFI

To: "doc@kd4e.com" <doc@kd4e.com>
Subject: Re: [RFI] Battery Maintainers & RFI
From: "Christopher E. Brown" <cbrown@woods.net>
Date: Thu, 13 Jan 2011 21:47:42 -0600 (CST)
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>

Take a look at the IOTA Engineering DLS series, the /IQ4 models.

15 - 75 amp supplies, the /IQ4 indicates an internal charge controller 
designed for this use.  (They are also isolated output, rated for both 
series and parallel setups).

I run a pair of DLS-55/IQ4 as station supply and battery bank charger. 
_Measured output_ after a station run-time test a few months back was 
105amps ~ 13.2VDC, normal float voltage is 13.6

I have a 3rd unit as a spare / general purpose supply and charger.

One thing though, the MAX charge rate of the batterie(s) connected *MUST* 
be greater than the supplies limiter.

I have a 110amp output limit, but a normal use charge limit of 200+ amps 
to the bank (max safe even high).

Last thing you want is a 45 amps charger connected to a discharged small 
batt or gel-cell with a max safe charge current limit of 10 amps...

I would suggest looking at the DLS-15/IQ4

On Thu, 13 Jan 2011, doc@kd4e.com wrote:

> Many of us would benefit from a reliable battery maintenance
> charger for backup and portable batteries - but the problem
> has been suffering overcharge or troublesome cycling.
> In the search for a low-RFI and properly designed battery
> maintenance charger I have found the following.  Sure would
> appreciate any experienced/informed feedback about specific
> models.
> The Xantrex TrueCharger appears to be intentionally RFI-free
> and designed for relibility ...
> http://www.xantrex.com/power-products/battery-chargers/truecharge-2-2.aspx
> ... but they are $116. for the base model:
> http://www.shopping.com/Xantrex-Technology-Xantrex-Trucharge-10-10a-1-Bank/products?redir=1&BSC=1
> Then there are a variety of maintainers that also claim desulfating
> circuitry, and they may be found for between $9.99 (on sale) up to
> $59.
> <http://www.batteryminders.com/batterycharger/catalog/BatteryMINDer-Plus-12-Volt-133-Amp-Charger-Maintainer-Conditio-p-16134.html>
> http://www.harborfreight.com/automotive-motorcycle/battery/15-amp-three-stage-onboard-battery-charger-maintainer-99857.html
> http://www.amazon.com/Schumacher-SE-1-12S-Automatic-Onboard-Battery/dp/B0000AXTUY/ref=pd_sim_auto_3
> http://www.toolking.com/tool-accessories/batteries-chargers/automotive-battery-chargers-starters-maintainers/schumacher-se-1-12s-1-5amp-fully-automatic-on-board-maintainer-and-charger/
> http://www.thetoolwarehouse.net/p-5060-schumachercharge-express-se112s.aspx
> Walmart had this one on display today:
> Schumacher XM1-5 Maintainer, 1.5-Amp  $20.
> http://www.walmart.com/ip/Schumacher-XM1-5-Maintainer-1.5-Amp/15140193
> I guess we'd have to know what microprocessor and circuit they are
> using to know how it really functions and if it does not trash nearby
> radios.  Anyone checked one out?
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